An Etymological Dictionary of Astronomy and Astrophysics

1. (adj.) Belonging or pertaining to or of the nature of man or mankind, contrasted with animals.
   

2. (n.) A human being, → man. See also → anthropo-.

Etymology (EN): M.E. from M.F. humain, from L. humanus “of man, human,” also “humane, kind, gentle, polite,” probably related to homo “man,” and to humus “earth,” on notion of “earthly beings.”

Etymology (PE): Martu, → man, + -gân a suffix forming nouns or adjectives denoting relation and plurality.