Etymology
Advertisement
keenly (adv.)
Old English cenlice "boldly;" see keen (adj.) + -ly (2). Meaning "incisively, with intensity, acutely" is from c. 1200; that of "cuttingly" is from 1590s.
Related entries & more 
Advertisement
intensive (adj.)
mid-15c., "intense, fervent, great," from Old French intensif (14c.) and Medieval Latin intensivus, from Latin intens-, past participle stem of intendere "turn one's attention; strain, stretch" (see intend).

Grammatical meaning "expressing intensity" is from c. 1600; as a noun, "something expressing intensity," 1813, from the adjective. Alternative intensitive is a malformation. Intensive care attested from 1958. Related: Intensively; intensiveness.
Related entries & more 
-acious 
compound adjectival word-forming element of Latin origin, attached to verb stems and expressing intensity of action: "given to, inclined to, abounding in," or expressing intensity of physical or mental action, from Latin -aci- (nominative -ax, accusative -acem), noun ending used with verbal stems (see -acea), + -ous. The accompanying nouns are formed in -acity.
Related entries & more 
gauss 
C.G.S. unit of intensity of a magnetic field, 1882, named for German mathematician Karl Friedrich Gauss (1777-1855). Related: Gaussage; gaussian.
Related entries & more 
photometer (n.)

"instrument used to measure the intensity of light," 1778, from photo- "light" + -meter "device for measuring." Related: Photometric; photometry (1760).

Related entries & more 
Advertisement
de-escalate (v.)

also deescalate, "reduce the intensity of," 1964, from de- "do the opposite of" + escalate. Related: De-escalated; de-escalating; de-escalation.

Related entries & more 
seismometer (n.)

"instrument for measuring the intensity and motion of earthquakes," 1841, from seismo- + -meter. Originally different from a seismograph but now practically the same thing. Related: Seismometric; seismometry.

Related entries & more 
dimwit (n.)

also dim-wit, "slow-witted person," U.S. college slang by 1922, from dim (adj.) "of low intensity" + wit (n.) "intelligence." Related: dimwitted; dimwittedly.

Related entries & more 
mottled (adj.)

"dappled, marked with spots or patches of color of unequal intensity passing insensibly into one another," 1670s, past-participle adjective from see mottle (v.).

Related entries & more 
mutate (v.)

1818, "to change state or condition, undergo change," back-formation from mutation. In the genetic sense, "undergo mutation," 1913, from Latin mutatus, past participle of mutare "to change" (from PIE root *mei- (1) "to change, go, move"). Related: Mutated; mutating.

Related entries & more 

Page 2