of - Wiktionary
https://en.wiktionary.org/wiki/of
May 08, 2022 · From Middle English of, from Old English of (“from, out of”), an unstressed form of af, æf (“from, off, away”), from Proto-West Germanic *ab, from Proto-Germanic *ab (“away; away from”). Doublet of off, which is the stressed descendant of the same Old English word. More at off . Alternative forms o, o', a Pronunciation (stressed)
DA: 26 PA: 74 MOZ Rank: 44