"touching, meeting or joining at a surface or border," 1610s, from Latin contiguus "near, touching, bordering upon," from root of contingere "to touch upon" (see contact (n.)). Earlier form, now obsolete, was contiguate (mid-15c.); contigue (1540s). Related: Contiguously; contiguousness.

Proto-Indo-European root meaning "boundary, border."

It forms all or part of: Cymric; demarcation; Denmark; emarginate; landmark; march (v.) "walk with regular tread;" march (n.2) "boundary;" marchioness; margin; margrave; mark (n.1) "trace, impression;" mark (n.2) "unit of money or weight;" marque; marquee; marquetry; marquis; remark; remarkable.

It is the hypothetical source of/evidence for its existence is provided by: Latin margo "margin;" Avestan mareza- "border;" Old Irish mruig, Irish bruig "borderland," Welsh bro "district;" Old English mearc "boundary, sign, limit, mark," Gothic marka "boundary, frontier."

"included in a roll or catalogue," 1882, from past participle of list (v.3). Of telephone numbers, "in the phone book," from 1919. Earlier "provided with a border" (mid-15c.), from list (n.2); from 1670s in reference to ground marked off for combat.

"edge or border of a steep place," early 13c., from Middle Low German brink "edge," or from a Scandinavian source akin to Danish brink "steepness, shore, bank, grassy edge," from Proto-Germanic *brenkon, probably from PIE *bhreng-, variant of *bhren- "to project; edge" (source also of Lithuanian brinkti "to swell").

c. 1200, "profit, benefit, advancement;" mid-13c. "a structure composed according to a plan," from frame (v.) and in part from Scandinavian cognates (Old Norse frami "advancement"). In late 14c. it also meant "the rack."

Meaning "sustaining parts of a structure fitted together" is from c. 1400. Meaning "enclosing border" of any kind is from c. 1600; specifically "border or case for a picture or pane of glass" from 1660s. The meaning "human body" is from 1590s. Of bicycles, from 1871; of motor cars, from 1900. Meaning "separate picture in a series from a film" is from 1916. From 1660s in the meaning "particular state" (as in Frame of mind, 1711). Frame of reference is 1897, from mechanics and graphing; the figurative sense is attested from 1924.

"bordering on every side," late 15c., from Latin circumiacens, present participle of circumiacere "to border upon, to lie round about, enjoin," from circum "around, round about" (see circum-) + iacere "to throw, cast, hurl" (from PIE root *ye- "to throw, impel"). Related: Circumjacence; circumjacency.

"temporary resident, guest, visitor," early 15c. (early 14c. as a surname), agent noun from sojourn (v.). In Middle English sojournant also was used for "a visitor, guest, lodger, border" (mid-14c. as a surname), from Old French past participle of sojorner.

"puffed flounce, plaited border," c. 1700, folk-etymology alteration (as if fur below) of falbala, from French falbala (17c., cognate with Provençal farbello), from Italian falda "fold, flap, pleat," from a Germanic source, from Proto-Germanic *faldan (from PIE root *pel- (2) "to fold"). As a verb from 1701.

early 15c., perimetre, "circumference, outer boundary, or border of a figure or surface," from Latin perimetros, from Greek perimetron "circumference," from peri "around, about" (see peri-) + metron "measure" (from PIE root *me- (2) "to measure"). Military sense of "boundary of a defended position" is attested by 1943. Related: Perimetric; perimetrical.

"tend, incline," c. 1600, from Latin vergere "to bend, turn, tend toward, incline," from PIE *werg- "to turn," from root *wer- (2) "to turn, bend." Influenced by verge (v.2) "provide with a border" (c. 1600); "be adjacent to" (1787), from verge (n.). Related: Verged; verging.