comparative (adj.)youdaoicibaDictYouDict[comparative 词源字典]
mid-15c., from Middle French comparatif, from Latin comparativus "pertaining to comparison," from comparat-, past participle stem of comparare (see comparison). Originally grammatical; general sense is from c. 1600; meaning "involving different branches of a subject" is from 1670s. Related: Comparatively.[comparative etymology, comparative origin, 英语词源]