Garlic

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Old English gārlēac, from gār ‘spear’ (because the shape of a clove resembles the head of a spear) + lēac ‘leek’.

wiktionary

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From Middle English garlik, garleek, garlek, garlec, from Old English gārlēac(“garlic”, literally “spear-leek”), from gār (“spear”, in reference to the cloves) + lēac(“leek”). Cognate with Scots garlek, garleke, garlik(“garlic”).

etymonline

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garlic (n.)

"onion like bulbous plant allied to the leek, known to the ancients and much used in cookery," Middle English garlek, from Old English garlec (West Saxon), garleac (Mercian), "garlic," from gar "spear" (in reference to the clove), see gar, + leac "leek" (see leek). Garlic-bread is attested by 1947.