Old Testament Hebrew Lexical Dictionary
Strong's #5391 - נָשַׁךְ
Jeff Brenner, Ancient Hebrew Research Center Used by permission of the author.
נָשַׁךְ fut. יִשֹּׁךְ Ecclesiastes 10:11, and יִשַּׁךְ Proverbs 23:32, to bite, as a serpent, Genesis 49:17; Numbers 21:6, seq. [Piel]; as a man, Micah 3:5 (Eth. ነሰከ፡ id.; Syriac transp, ܢܟܬܰ); metaph.
(a) to vex, to oppress, Habakkuk 2:7.
(b) to lend on usury, Deuteronomy 23:20 since not only lending on usury, but even receiving interest was supposed to mark a sordid person and an oppressor of the weak (comp. Aram. נְכַת, ܢܟܬܰ to bite; whence נוֹכְתּא usury; Arab. قرض to gnaw; Conj. III. to lend on usury; Gr. δάκνεσθαι ὑπὸ τῶν χρεῶν, Arist. Nub. i. 12; Lat. usura vorax, Lucan, i. 171).
Piel, i.q. Kal, to bite, Numbers 21:6; Jeremiah 8:17.
Hiphil הִשִּׁיךְ to take usury of any one, followed by a dat. of pers. Deuteronomy 23:21. Hence
the Third Week after Easter