ἀνωφελία

From LSJ

ὁ μὴ δαρεὶς ἄνθρωπος οὐ παιδεύεται → spare the rod and spoil the child | οne who hasn't been flayed is not being taught | if the man was not beaten, he is not educated | the man, who was not paddled, is not educated

Source

Spanish (DGE)

v. ἀνωφέλεια.