From Anglo-Norman soket, diminutive of Old French soc 'plowshare' (from Gaulish *succos), originally meaning the hollow base of a spearhead, then generalizing to any cavity that receives an insert.
A hollow or concavity into which something fits or is inserted, such as an eye socket, electrical outlet, or the receptacle for a light bulb.
From Anglo-Norman soket, a diminutive of Old French soc 'plowshare,' from Gaulish *succos (compare Welsh swch, Irish soc 'plowshare'). The original meaning was the hollow iron head of a spear or arrow into which the shaft was fitted, shaped like a small plowshare. The sense generalized to mean any hollow receptacle into which something is inserted. Key roots: *sū- (Proto-Indo-European: "pig (the plowshare resembled a pig's snout)").