סָתַר

From LSJ

Μισθὸς διδάσκει γράμματ', οὐ διδάσκαλος → Pretium docet te, non praeceptor, litteras → Der Lehrer lehrt das Lesen nicht, es ist der Lohn

Menander, Monostichoi, 337

English (Strong)

a primitive root; to hide (by covering), literally or figuratively: be absent, keep close, conceal, hide (self), (keep) secret, X surely.