Old Testament Hebrew Lexical Dictionary
Strong's #05545 - סָלַח
1) to forgive, pardon
1a) (Qal) to forgive, pardon
1b) (Niphal) to be forgiven
Jeff Brenner, Ancient Hebrew Research Center Used by permission of the author.
סָלַח fut. יִסְלַח to pardon, forgive; followed by a dat., Exodus 34:9; 1 Kings 8:34, 36 1 Kings 8:36, 39 1 Kings 8:39. (Chald. Zab. id.; Eth. with the letters transposed, ተሠሀለ፡ to be merciful, propitious, to pardon; comp. Arab. سهل to shew oneself gentle. The primary idea seems to be that of lightness, lifting up; compare סָלָא, סָלָה).
Niphal, to be forgiven (used of sin), Leviticus 4:20, 26, 31 5:10, 13. Hence
the Sixth Week after Easter