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Lewis : AC

AC, AC, a Latin root, denoting () sharp and () quick, kindred with the Greek ἄκρος and ὠκ-ύς, Sanscr. ācu (= celeriter). Hence the Latin acer, acies, acuo, acus, acutus, aquila, accipiter, acupedius (prob. also equus), ocior, and oculus.