reside (v.) Look up reside at Dictionary.com
late 15c., "to settle," from Middle French resider (15c.) and directly from Latin residere "sit down, settle; remain behind, rest, linger; be left," from re- "back, again" (see re-) + sedere "to sit" (see sedentary). Meaning "to dwell permanently" first attested 1570s. Related: Resided; residing. Also from the French word are Dutch resideren, German residiren.
residence (n.) Look up residence at Dictionary.com
late 14c., "act of dwelling; dwelling place," from Old French residence, from Medieval Latin residentia, from Latin residentem (nominative residens) "residing, dwelling," present participle of residere "reside" (see reside). Also borrowed into German (Residenz), Dutch (residentie).
residency (n.) Look up residency at Dictionary.com
1570s, "residence;" see resident + -cy. Hospital sense is from 1924.
resident (n.) Look up resident at Dictionary.com
mid-15c., "an inhabitant, one who resides," from resident (adj.). Meaning "medical graduate in practice in a hospital as training" first attested 1892, American English.
resident (adj.) Look up resident at Dictionary.com
late 14c., "dwelling, residing," from Old French resident and directly from Latin residentem (nominative residens), present participle of residere "to sit down, settle" (see reside).
residential (adj.) Look up residential at Dictionary.com
1650s, "serving as a residence," from resident (n.) + -ial. Meaning "having to do with housing" is from 1856.
residual (adj.) Look up residual at Dictionary.com
1560s, from residue + -al (1), or from French résiduel, from Latin residuum.
residual (n.) Look up residual at Dictionary.com
1550s, in mathematics, from residual (adj.) or from residue + -al (2). Residuals "royalties" attested by 1960.
residue (n.) Look up residue at Dictionary.com
mid-14c., from Old French residu (14c.), from Latin residuum "a remainder, that which is left behind," noun use of neuter of adjective residuus "remaining, left over," from residere "remain behind" (see reside).
resign (v.) Look up resign at Dictionary.com
late 14c., "give up, surrender, abandon, submit; relinquish," from Old French resigner "renounce, relinquish" (13c.), from Latin resignare "to check off, annul, cancel, give back, give up," from re- "opposite" (see re-) + signare "to make an entry in an account book," literally "to mark" (see sign (v.)).

The sense is of making an entry (signum) "opposite" -- on the credit side -- balancing the former mark and thus canceling the claim it represents. The specific meaning of "give up a position" is first recorded late 14c. Sense of "to give (oneself) up to some emotion or situation" is from 1718. Related: Resigned; resigning.
resignation (n.) Look up resignation at Dictionary.com
late 14c., "act of resigning" (an office, etc.), from Old French resignation (14c.) and directly from Medieval Latin resignationem (nominative resignatio), noun of action from past participle stem of Latin resignare (see resign). Meaning "submission, acquiescence" is from 1640s.
resigned (adj.) Look up resigned at Dictionary.com
"submissive, full of resignation," 1690s, past participle adjective from resign (v.). Related: Resignedly.
resile (v.) Look up resile at Dictionary.com
1520s, "draw back," from obsolete French resiler "withdraw from an agreement," or directly from Latin resilire "to jump back" (see resilience). Meaning "spring back, start back, recoil" (of material things) from 1708. Related: Resiled; resiling.
resilience (n.) Look up resilience at Dictionary.com
1620s, "act of rebounding," from Latin resiliens, present participle of resilire "to rebound, recoil," from re- "back" (see re-) + salire "to jump, leap" (see salient (adj.)). Compare result (v.). Meaning "elasticity" is from 1824.
resiliency (n.) Look up resiliency at Dictionary.com
1660s, "tendency to rebound;" see resilience + -cy. Meaning "power of recovery" is from 1857.
resilient (adj.) Look up resilient at Dictionary.com
1640s, "springing back," from Latin resilientem "inclined to leap or spring back," present participle of resilire (see resilience). Figuratively, of persons, from 1830. Related: Resiliently.
resin (n.) Look up resin at Dictionary.com
late 14c., from Old French resine "gum, resin," and directly from Latin resina "resin," from Greek rhetine "resin of the pine," of unknown origin.
resinate (v.) Look up resinate at Dictionary.com
"impregnate with resin," 1891, from resin + -ate (2). Related: Resinated; resinating.
resinous (adj.) Look up resinous at Dictionary.com
1640s, from Latin resinosus, from resina (see resin).
resist (v.) Look up resist at Dictionary.com
late 14c., from Old French resister "hold out against" (14c.), from Latin resistere "to make a stand against, oppose; to stand back; withstand," from re- "against" (see re-) + sistere "take a stand, stand firm" (see assist). Related: Resisted; resisting.
resistance (n.) Look up resistance at Dictionary.com
mid-14c., from Old French resistance, earlier resistence, from Late Latin resistentia, from present participle stem of Latin resistere "make a stand against, oppose" (see resist). Meaning "organized covert opposition to an occupying or ruling power" [OED] is from 1939. Electromagnetic sense is from 1860. Path of least resistance is from 1825, originally a term in science and engineering.
resistant (adj.) Look up resistant at Dictionary.com
c.1600, from French résistant, present participle of résister (see resist). In reference to diseases or drugs from 1897.
resistible (adj.) Look up resistible at Dictionary.com
1640s, from resist (v.) + -ible. Alternative resistable attested from c.1600.
resistor (n.) Look up resistor at Dictionary.com
late 14c., "one who resists;" 1580s, "that which resists;" agent noun in Latin form from resist. Specifically in electricity from 1905; resister was used in this sense from 1759.
resoluble (adj.) Look up resoluble at Dictionary.com
c.1600, from Late Latin resulubilis, from re-, (see re-) + solubilis (see soluble).
resolute (adj.) Look up resolute at Dictionary.com
early 15c., "dissolved, of loose structure," also "morally lax," from Latin resolutus, past participle of resolvere "untie, unfasten, loose, loosen" (see resolution). Meaning "determined, decided, absolute, final" is from c.1500, especially in resolute answer, a phrase "common in 16th c." [OED]. From 1530s of persons. The notion is of "breaking (something) into parts" as the way to arrive at the truth of it and thus make the final determination (compare resolution). Related: Resolutely; resoluteness.
resolution (n.) Look up resolution at Dictionary.com
late 14c., "a breaking into parts," from Old French resolution (14c.) or directly from Latin resolutionem (nominative resolutio) "process of reducing things into simpler forms," from past participle stem of resolvere "loosen" (see resolve). Sense of "a solving" (as of mathematical problems) first recorded 1540s, as is that of "power of holding firmly" (compare resolute). Sense of "decision or expression of a meeting" is from c.1600. Meaning "effect of an optical instrument" is from 1860. New Year's resolutions in reference to a specific intention to better oneself is at least from 1780s, and through 19c. generally of a pious nature.
resolvable (adj.) Look up resolvable at Dictionary.com
1640s, from resolve (v.) + -able.
resolve (v.) Look up resolve at Dictionary.com
late 14c., "melt, dissolve, reduce to liquid;" intransitive sense from c.1400; from Old French resolver or directly from Latin resolvere "to loosen, loose, unyoke, undo; explain; relax; set free; make void, dispel," from re-, perhaps intensive, or "back" (see re-), + solvere "loosen" (see solve). Early 15c. as "separate into components," hence the use in optics (1785). Meaning "determine, decide upon" is from 1520s, hence "pass a resolution" (1580s). For sense evolution, compare resolute (adj.). Related: Resolved; resolving.
resolve (n.) Look up resolve at Dictionary.com
"determination, firmness or fixedness of purpose; a determination," 1590s, from resolve (v.).
resolved (adj.) Look up resolved at Dictionary.com
"determined," 1520s, past participle adjective from resolve (v.). Related: Resolvedly.
resonance (n.) Look up resonance at Dictionary.com
mid-15c., in acoustics, "prolongation of sound by reverberation;" 1660s, "act of resonating;" from Middle French resonance (15c.), from Latin resonantia "echo," from resonare "to sound again" (see resound). Earlier in same sense was resonation (early 15c.).
resonant (adj.) Look up resonant at Dictionary.com
1590s, from Latin resonantem (nominative resonans), present participle of resonare (see resonance).
resonate (v.) Look up resonate at Dictionary.com
1873, from Latin resonatus, past participle of resonare "to sound again" (see resonance). Literal at first; figurative sense, of feelings, emotions, etc., by 1978. Related: Resonated; resonating.
resonator (n.) Look up resonator at Dictionary.com
instrument or chamber formed to respond to a single tone, 1869, agent noun in Latin form from resonate (v.).
resorb (v.) Look up resorb at Dictionary.com
1630s, from French résorber or directly from Latin resorbere "to suck back," from re- "back, again" (see re-) + sorbere "to suck" (see absorb). Related: Resorbed; resorbing.
resorption (n.) Look up resorption at Dictionary.com
1670s, noun of action from resorb.
resort (n.) Look up resort at Dictionary.com
late 14c., "that to which one has recourse for aid or assistance," from Old French resort "resource, a help, an aid, a remedy," back-formation from resortir "to resort," literally "to go out again," from re- "again" (see re-) + sortir "go out" (see sortie). Meaning "place people go for recreation" is first recorded 1754. Phrase in the last resort (1670s) translates French en dernier ressort, originally of legal appeals.
resort (v.) Look up resort at Dictionary.com
c.1400, "issue; come out again;" mid-15c., "to go to (someone) for aid," from Old French resortir, from resort (see resort (n.)). Related: Resorted; resorting.
resound (v.) Look up resound at Dictionary.com
late 14c., resownen, from Old French resoner "reverberate" (12c., Modern French résonner), from Latin resonare "sound again, resound, echo," from re- "back, again" (see re-) + sonare "to sound" (see sonata). Spelling influenced from mid-15c. by sound (v.). Related: Resounded; resounding.
resounding (adj.) Look up resounding at Dictionary.com
late 14c., present participle adjective from resound (v.). Figurative use from 1630s. Related: Resoundingly.
resource (n.) Look up resource at Dictionary.com
1610s, "means of supplying a want or deficiency," from French resourse "a source, spring," noun use of fem. past participle of Old French resourdre "to rally, raise again," from Latin resurgere "rise again" (see resurgent). Resources "a country's wealth" first recorded 1779.
resource (v.) Look up resource at Dictionary.com
1975, from resource (n.). Related: Resourced; resourcing.
resourceful (adj.) Look up resourceful at Dictionary.com
1807, from resource + -ful. Related: Resourcefully; resourcefulness.
respect (n.) Look up respect at Dictionary.com
late 14c., "relationship, relation; regard, consideration," from Old French respect and directly from Latin respectus "regard, a looking at," literally "act of looking back (or often) at one," noun use of past participle of respicere "look back at, regard, consider," from re- "back" (see re-) + specere "look at" (see scope (n.1)). Meanings "feeling of esteem excited by actions or attributes of someone or something; courteous or considerate treatment due to personal worth or power" are from 1580s, as is sense of "point, particular feature."
respect (v.) Look up respect at Dictionary.com
1540s, "to regard," from Middle French respecter "look back; respect; delay," from Latin respectere, frequentative of respicere (see respect (n.). Meaning "treat with deferential regard or esteem" is from 1550s. Sense of "refrain from injuring" is from 1620s. Meaning "have reference to" is from 1560s. Related: Respected; respecting.

To respect the person was "show undue bias toward (or against) based on regard for the outward circumstances of a person;" hence respecter of persons, usually with negative, from Acts x:34, in the 1611 translation.
respectability (n.) Look up respectability at Dictionary.com
1785, from respectable + -ity.
respectable (adj.) Look up respectable at Dictionary.com
"worthy of esteem," 1580s; see respect (v.) + -able. Sense of "having an honest reputation" is from 1755. That of "occupying a fairly good position in society" is c.1800. Related: Respectably.
respectful (adj.) Look up respectful at Dictionary.com
1580s, "characterized by respect" (implied in respectfully), from respect (n.) + -ful. Meaning "full of outward civility" attested from 1680s. Related: Respectfulness.
respective (adj.) Look up respective at Dictionary.com
mid-15c., "regardful, observing or noting with attention," from Medieval Latin respectivus "having regard for," from Latin respect- past participle stem of respicere (see respect (n.)). Meaning "relating or pertaining severally each to each" is from 1640s.