LACK
Lack, v. t. [imp. & p. p. Lacked; p. pr. & vb. n. Lacking.]
1. To blame; to find fault with. [Obs.] 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.
LACK
Lack, v. i.
1. To be wanting; often, impersonally, with of, meaning, to be less than, short, not quite, etc. What hour now I think it lacks of twelve. Shak. Peradventure there shall lack five of the fifty. Gen. xvii. 28.
2. To be in want. The young lions do lack, and suffer hunger. Ps. xxxiv. 10.
LACK
Lack, interj. Etym: [Cf. Alack.]
Defn: Exclamation of regret or surprise. [Prov. Eng.] Cowper.
LACKADAISICAL
Lack`a*dai"si*cal, a. Etym: [From Lackadaisy, interj.]
Defn: Affectedly pensive; languidly sentimental.
— Lack`a*dai"si*cal*ly, adv.