In Greek mythology, Koalemos (Ancient Greek: Κοάλεμος) was the personification of stupidity, mentioned once by Aristophanes,[1] and being found also in Parallel Lives by Plutarch.[2] Coalemus is the Latin spelling of the name.
Otherwise, the word κοάλεμος was used in the sense of "stupid person" or also "blockhead".[3]
An ancient false etymology derives κοάλεμος from κοέω (koeō) "perceive" and ἡλεός (ēleos) "distraught, crazed".[4] This etymology is not established, however.[5]