Third-person singular simple present indicative form of lack.(verb)
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Use "lacketh" in a sentence
"One who "committeth adultery with a woman lacketh understanding," Proverbs tells us, and "he that doeth it destroyeth his own soul" 6:32."
"Know that one who lacketh experience in worldly matters readily falleth into misfortune; and whoso considereth not the end keepeth not the world to friend, and the vulgar say: — I was lying at mine ease: nought but my officiousness brought me unease."
"To a framework lere and lorn that lacketh blood and life,"