שָׁקַרshâqar

do or deal falsely

Pronunciation: shaw-kar' · Hebrew/Aramaic (Old Testament) · H8266

Meanings

Qal: do falsely (Genesis 21:23)

Pi`el: deal falsely (Psalms 44:18; 1 Samuel 15:29; Isaiah 63:8)

Same root

שֶׁקֶרsheqer · H8267an untruth; by implication, a sham (often adverbial)

Where it appears

Appears 6 times in the Bible.

Genesis 21:23 “Swear to me in God’s name that you will never deceive me, my children, or any of my descendants. I have been loyal to you, so now swear that you will be loyal to me and to this country where you are living as a foreigner.”
Leviticus 19:11 “Do not steal. “Do not deceive or cheat one another.
1 Samuel 15:29 And he who is the Glory of Israel will not lie, nor will he change his mind, for he is not human that he should change his mind!”
Psalms 44:17 All this has happened though we have not forgotten you. We have not violated your covenant.
Psalms 89:33 But I will never stop loving him nor fail to keep my promise to him.
Isaiah 63:8 He said, “They are my very own people. Surely they will not betray me again.” And he became their Savior.

Source: Brown, Driver and Briggs, Hebrew and English Lexicon of the Old Testament (1906), public domain; markup by unfoldingWord, CC BY (github.com/unfoldingWord/Brown-Driver-Briggs-Enhanced).