Human
late Middle English humaine, from Old French humain(e ), from Latin humanus, from homo ‘man, human being’. The present spelling became usual in the 18th century; compare with humane.
wiktionary
From Late Middle English humayne, humain, from Middle French humain, from Old French humain, umain, from Latin hūmānusm(“of or belonging to a man, human, humane”, adjective), from humus, with unclear ū. Spelling human has been predominant since the early 18th century. [1]
etymonline
human (adj.)
mid-15c., humain, humaigne, "human," 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." This is in part from PIE *(dh)ghomon-, literally "earthling, earthly being," as opposed to the gods (from root *dhghem- "earth"), but there is no settled explanation of the sound changes involved. Compare Hebrew adam "man," from adamah "ground." Cognate with Old Lithuanian žmuo (accusative žmuni) "man, male person."
Human interest is from 1824. 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 based on natural resources. Human comedy "sum of human activities" translates French comédie humaine (Balzac); see comedy.
human (n.)
"a human being," 1530s, from human (adj.). Its Old English equivalent, guma, survives only in disguise in bridegroom.
