Aino \Ai"no\, n. [Said to be the native name for man.]

One of a peculiar race inhabiting Yesso, the Kooril Islands etc., in the northern part of the empire of Japan, by some supposed to have been the progenitors of the Japanese. The Ainos are stout and short, with hairy bodies.

Source: Webster's Revised Unabridged Dictionary (1913)