humanyoudaoicibaDictYouDict[human 词源字典]
human: [14] Human comes via Old French humain from Latin hūmānus. Like homō ‘person’, this was related to Latin humus ‘earth’, and was used originally for ‘people’ in the sense ‘earthly beings’ (in contrast with the immortal gods). Humane is essentially the same word, and became established in the 18th century as a distinct spelling (and pronunciation) for two or three specific senses of human. Other English derivatives include humanism [19], humanity [14], and humanitarian [19].
=> humane, humble, humus[human etymology, human origin, 英语词源]
human (adj.)youdaoicibaDictYouDict
mid-15c., humain, humaigne, from Old French humain, umain (adj.) "of or belonging to man" (12c.), from Latin humanus "of man, human," also "humane, philanthropic, kind, gentle, polite; learned, refined, civilized," probably related to homo (genitive hominis) "man" (see homunculus) and to humus "earth," on notion of "earthly beings," as opposed to the gods (compare Hebrew adam "man," from adamah "ground"). Cognate with Old Lithuanian zmuo (accusative zmuni) "man, male person."

As a noun, from 1530s. Its Old English cognate guma (from Proto-Germanic *guman-) survives only in disguise in bridegroom. Related: Humanness. Human rights attested by 1680s; human being by 1690s. Human relations is from 1916; human resources attested by 1907, American English, apparently originally among social Christians and drawn from natural resources.