tack (n.1)

"clasp, hook, fastener," also "a nail" of some kind, c. 1400, from Old North French taque "nail, pin, peg" (Old French tache, 12c., "nail, spike, tack; pin brooch"), probably from a Germanic source (compare Middle Dutch tacke "twig, spike," Frisian tak "a tine, prong, twig, branch," Low German takk "tine, pointed thing," German Zacken "sharp point, tooth, prong"), from Proto-Germanic *tag-. Meaning "small, sharp nail with a flat head" is attested from mid-15c. The meaning "rope to hold the corner of a sail in place" is first recorded late 15c.

tack (n.2)

"horse's harness, etc.," 1924, shortening of tackle (n.) in sense of "equipment." Tack in a non-equestrian sense as a shortening of tackle is recorded in dialect from 1777.

tack (n.3)

"food" in general, but in dialect especially "bad food," and especially among sailors "food of a bread kind," 1833, perhaps a shortening and special use of tackle (n.) in the sense of "gear." But compare tack "taste" (c. 1600), perhaps a variant of tact.

tack (v.1)

late 14c., "to attach" with a nail, etc., from tack (n.1). Meaning "to attach as a supplement" (with suggestion of hasty or arbitrary proceeding) is from 1680s. Related: Tacked; tacking.

tack (v.2)

"turn a ship's course toward the wind at an angle," 1550s, from tack (n.1) in the ship-rigging sense (the ropes were used to move the vessel temporarily to one side or another of its general line of course, to take advantage of a side-wind); hence tack (n.) "course of conduct or mode of action suited to some purpose" (1670s), from figurative use of the verb (1630s). Related: Tacked; tacking.

updated on January 13, 2014

Definitions of tack from WordNet
tack (v.)
fasten with tacks;
tack the notice on the board
tack (v.)
turn into the wind;
The sailors decided to tack the boat
The boat tacked
Synonyms: wear round
tack (v.)
create by putting components or members together;
He tacked together some verses
Synonyms: assemble / piece / put together / set up / tack together
tack (v.)
sew together loosely, with large stitches;
Synonyms: baste
tack (v.)
fix to; attach;
Synonyms: append / tag on / tack on / hang on
tack (v.)
reverse (a direction, attitude, or course of action);
tack (n.)
the heading or position of a vessel relative to the trim of its sails;
tack (n.)
a short nail with a sharp point and a large head;
tack (n.)
gear for a horse;
Synonyms: stable gear / saddlery
tack (n.)
(nautical) a line (rope or chain) that regulates the angle at which a sail is set in relation to the wind;
Synonyms: sheet / mainsheet / weather sheet / shroud
tack (n.)
(nautical) the act of changing tack;
Synonyms: tacking
tack (n.)
sailing a zigzag course;
Etymologies are not definitions. From, not affiliated with etymonline.