man

"a featherless plantigrade biped mammal of the genus Homo" (Century Dictionary)

Old English man, mann "human being, person (male or female); brave man, hero;" also "servant, vassal, adult male considered as under the control of another person"
from Proto-Germanic root mann-
from PIE root man- "man"
Not to be confused with the PIE root man- "hand"

The sense of adult male of the human race (separate from woman, or a boy) is in Old English by circa 1000.
Old English used wer and wif to distinguish the sexes.