Keye

Part of speech: noun

Definitions

1. An old spelling of the small metal tool that is inserted into a lock to open or close it
2. A historical variant spelling referring to the notched metal implement used to turn a lock mechanism
3. An archaic form of the word for the slender shaped device that works a lock when turned inside it

Etymology: Old English already had a word for this object, "cæg," and Latin had "clavis," which also meant key. The two are not related. The English word descends from a Germanic root, while "clavis" passed into English separately through Latin and French. Two unrelated languages independently supplied the same small iron device with a name. "Keye" is a Middle English spelling of the same noun, and the "y" reflects the spelling habits of that period. Over several centuries "cæg" softened into "keie" and then "keye," and the final vowel letters were eventually dropped, leaving the modern "key."