Lack, v. t. [imp. & p. p.Lacked (?); p. pr. & vb. n.Lacking.] 1. To blame; to find fault with.
Love them and lakke them not. Piers Plowman.
2. To be without or destitute of; to want; to need.
If any of you lack wisdom, let him ask of God. James i. 5.