rhathymia

The story

1. Ancient Greek · derived fromῥᾳθῡμία“easiness of temper”
2. English todayrhathymia

From Ancient Greek ῥᾳθῡμία (rhāithūmía, “easiness of temper”), from ῥᾴθυμος (rhāíthumos, “easy-going”), from ῥᾶ (rhâ, “easily”) (see ῥᾴδιος (rhāídios)) + θυμός (thumós, “soul, mind”)).