hot-tempered; habitually angry
He is by nature a choleric man, and yet, when he is not angry, he is very kind and generous.
khole (gall, bile) (Greek)
affable, amiable, personable
choleric=co+lyric. when cosingers are not following the lyric properly. composer gets anger (hot tempered) cholera is a disease. When you are sick you get irritated and bad-tempered, you are choleric. So choleric