anthropo- Look up anthropo- at Dictionary.com
before a vowel, anthrop-, word-forming element meaning "pertaining to man or human beings," from Greek anthropos "man; human being (including women)," from Attic andra (genitive andros), from Greek aner "man" (as opposed to a woman, a god, or a boy), from PIE root *ner- (2) "man," also "vigorous, vital, strong" (see andro-).

Anthropos sometimes is explained as a compound of aner and ops (genitive opos) "eye, face;" so literally "he who has the face of a man." The change of -d- to -th- is difficult to explain; perhaps it is from some lost dialectal variant, or the mistaken belief that there was an aspiration sign over the vowel in the second element (as though *-dhropo-), which mistake might have come about by influence of common verbs such as horao "to see."