Etymology of the English word chrestomathy
the English word chrestomathy
derived from the Greek word chrestomatheia, χρηστομάθεια
derived from the Greek word manthanein, μανθάνω (to learn (in any way))
derived from the Proto-Indo-European root *mendh-
derived from the Greek word chrestos, χρηστός (employed; useful (in manner or morals))