c.1300, "spearhead" (originally one shaped like a plowshare), from Anglo-Fr.
soket "spearhead" (c.1260), dim. of O.Fr.
soc "plowshare," from V.L.
*soccus, probably from a Gaulish source, cf. Welsh
swch "plowshare," Middle Irish
soc "plowshare," prop. "hog's snout," cognate with L.
sus "swine;" see
sow (n.) "female pig." Meaning "hollow part or piece for receiving and holding something" first recorded 1448; anatomical sense is from 1601; domestic electrical sense first recorded 1885.
Socket wrench is attested from 1905.