1520s, "short note or document," from a shortened form of French etiquet "label, note," from Old French estiquette "a little note" (late 14c.), especially one affixed to a gate or wall as a public notice, literally "something stuck (up or on)," from estiquer "to affix, stick on, attach," from Frankish *stikkan, cognate with Old English stician "to pierce," from Proto-Germanic *stikken "to be stuck," stative form from PIE *steig- "to stick; pointed" (see stick (v.)).

Meaning "card or piece of paper that gives its holder a right or privilege" is first recorded 1670s, probably developing from the sense of "certificate, licence, permit." The political sense of "list of candidates put forward by a faction" has been used in American English since 1711. Meaning "official notification of offense" is from 1930. Big ticket item is from 1953. Slang the ticket "just the thing, what is expected" is recorded from 1838, perhaps with notion of a winning lottery ticket.

1610s, "attach a ticket to, put a label on," from ticket (n.). Meaning "issue a (parking) ticket to" is from 1955. Related: Ticketed; ticketing.

"to make smooth," early 14c., originally in a figurative sense, "to gloss over, explain away;" mid-14c. as "to make smooth or even" (especially by use of a plane (n.3)), from Old French planer "to smooth, level off; wipe away, erase" (12c.) and directly from Late Latin planare "make level," from Latin planus "level, flat" (from PIE root *pele- (2) "flat; to spread"). In early use in English often plain. Related: Planed; planing.

"flat surface, simplest of all geometrical surfaces," c. 1600, from Latin planum "flat surface, plane, level, plain," noun use of neuter of adjective planus "flat, level, even, plain, clear," from PIE *pla-no- (source also of Lithuanian plonas "thin;" Celtic *lanon "plain;" perhaps also Greek pelanos "sacrificial cake, a mixture offered to the gods, offering (of meal, honey, and oil) poured or spread"), suffixed form of root *pele- (2) "flat; to spread."

Introduced (perhaps by influence of French plan in this sense) to differentiate the geometrical senses from plain, which in mid-16c. English also meant "geometric plane." The figurative sense, in reference to inanimate things, is attested from 1850.

"having the characteristics of a plane," 1560s, from French plan, from Latin planus "flat, level, even" (see plane (n.1)).

1908, short for aeroplane (see airplane).

"tool for smoothing surfaces," mid-14c., from Old French plane, earlier plaine (14c.) and directly from Late Latin plana, back-formation from planare "make level," from Latin planus "level, flat, smooth" (from PIE root *pele- (2) "flat; to spread").

"tree of the genus Platanus," native to Persia and the Levant, late 14c., from Old French plane, earlier plasne (14c.), from Latin platanus, from Greek platanos, earlier platanistos "plane tree," a species from Asia Minor, associated with platys "broad" (from PIE root *plat- "to spread") in reference to its leaves. Applied since 1778 in Scotland and northern England to the "sycamore" maple (mock-plane), whose leaves somewhat resemble those of the true plane tree. Compare sycamore.

"soar, glide on motionless wings," early 15c., planen, from Old French planer "to hover (as a bird), to lie flat," from plan (n.) "plane," or perhaps via Medieval Latin; in either case from Latin planum "flat surface" (from PIE root *pele- (2) "flat; to spread"), on notion of bird gliding with flattened wings. Of boats, etc., "to skim over the surface of water," it is attested by 1913. Related: Planed; planing.

"credit," 1640s, shortening of ticket (n.).