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