Word Origin & History
stoutc.1300, "proud, valiant, strong," from O.Fr. estout "brave, fierce, proud," earlier estolt "strong," from W.Gmc. *stult- "proud, stately" (cf. M.L.G. stolt "stately, proud," Ger. stolz "proud, haughty, arrogant, stately"), from PIE base *stel- "to put, stand." Meaning "strong in body, powerfully built"
is attested from c.1386, but has been displaced by the (often euphemistic) meaning "thick-bodied, fat and large," which is first recorded 1804. Original sense preserved in stout-hearted (1552). The noun "strong, dark-brown beer" is first recorded 1677, from the adjective.