שָׁכַח

From LSJ

Ζήσεις βίον κράτιστον, ἢν θυμοῦ κρατῇς → Vives bene, si sis vacuus iracundia → Am besten lebst du, wenn du deinen Zorn beherrschst

Menander, Monostichoi, 186

English (Strong)

or shakeach; a primitive root; to mislay, i.e. to be oblivious of, from want of memory or attention: X at all, (cause to) forget.