afar (adv.)youdaoicibaDictYouDict[afar 词源字典]
contraction of Middle English of feor (late 12c.), on ferr (c. 1300), from Old English feor "far" (see far); the a- (1) in compounds representing both of and on (which in this use meant the same thing). Spelled afer in 14c.[afar etymology, afar origin, 英语词源]