KOALEMOS was the god or spirit (daimon) of stupidity and foolishness. His name is derived from the words koeô and êleos, meaning "hearing foolishness."
Perhaps a son of NYX, though nowhere stated
Aristophanes, Birds 220 ff (trans. O'Neill) (Greek comedy C5th to 4th B.C.) :
"Come, take a chaplet, offer a libation to Koalemos (Coalemus) the god of Stupidity and take care to fight vigorously."
Plutarch, Life of Cimon 4. 3 (trans. Perrin) (Greek historian C1st to C2nd A.D.) :
"He [a man] had the bad name of being dissolute and bibulous, and of taking after his grandfather Kimon, who, they say, because of his simplicity, was dubbed Koalemos (Coalemus), the Stupid-One."
- Aristophanes, Knights - Greek Comedy C5th-4th B.C.
- Plutarch, Lives - Greek Historian C1st-2nd A.D.