fitting (adj.)youdaoicibaDictYouDict[fitting 词源字典]
"proper, befitting, right," early 15c., present-participle adjective from fit (v.). Related: Fittingly.[fitting etymology, fitting origin, 英语词源]
fitting (n.)youdaoicibaDictYouDict
c. 1600, verbal noun from fit (v.). Meaning "action of fitting on a garment" is from 1900.