the.com/man

means An adult male human — or, depending on context, a stand-in word for humans in general, a filler exclamation, or a term of address between friends.

from Goes back to Old English 'mann,' which originally meant a human being of either sex — the species word, not the gendered one. Germanic languages kept that pattern (German 'Mann,' Dutch 'man'), and over centuries English narrowed the everyday sense toward 'adult male' while 'mankind' and fossils like 'woman' (literally 'wife-man') still carry the old, broader meaning. The root itself is ancient and murky — possibly tied to an old word for 'think,' as if humans named themselves after the one thing they were sure they did.