FROM STRONG’S HEBREW DICTIONARY (1890)

Strong’s Hebrew Dictionary (1890) — public domain, printed whole.

sheqer sheh'-ker — from 8266; an untruth; by implication, a sham (often adverbial):--without a cause, deceit(-ful), false(-hood, -ly), feignedly, liar, + lie, lying, vain (thing), wrongfully.

see HEBREW for 08266