astray (adv.)youdaoicibaDictYouDict[astray 词源字典]
c. 1300, astraied "away from home; lost," borrowed and partially nativized from Old French estraie, past participle of estraier "astray, riderless (of a horse), lost," literally "on stray" (see stray (v.)).[astray etymology, astray origin, 英语词源]