H2820:
חָשַׂךְ
(châsak)
a primitive root; also interchangeable with חָשַׁךְ; to restrain or (reflex.) refrain; by implication, to refuse, spare, preserve; to observe; assuage, [idiom] darken, forbear, hinder, hold back, keep (back), punish, refrain, reserve, spare, withhold.