gorilla (n.)
1847, applied to a species of large apes (Troglodytes gorilla) by U.S. missionary Thomas Savage, from Greek gorillai, plural of name given to wild, hairy beings (now supposed to have been chimpanzees) in a Greek translation of Carthaginian navigator Hanno's account of his voyage along the northwest coast of Africa, c. 500 B.C.E. Allegedly an African word.