Lexical Definition

‎נָשַׁךְ‎ nâshak (naw-shak') to bite ^H:V
a primitive root

bite, lend upon usury.

• to strike with a sting (as a serpent)
• figuratively, to oppress with interest on a loan

1) to bite
1a) (Qal) to bite
1b) (Piel) to bite
2) to pay, give interest, lend for interest or usury
2a) (Qal) to give interest
2b) (Hiphil) to make to give interest

See Greek: δάκνω · πλήσσω

Brown-Driver-Briggs

‎נָשַׁךְ‎ verb bite (Late Hebrew = Biblical Hebrew, but also transposed ‎נְכַשׁ‎ Hiph`il); Assyrian našâku Dl^{HWB 486}; ᵑ7 ‎נְכֵית‎ (especially of snakes); Syriac , ; Ethiopic Di⁶⁴²; Ba^{ZMG xliii (1889), 188} compare Arabic , undo threads, untwist rope, disintegrate, dissolve); —

Qal Perfect 3 masculine singular ‎נָשַׁךְ‎ Num 21:9, suffix ‎וּנְשָׁכוֺ‎ consecutive Amos 5:19, ‎וּנְשָׁכָם‎ consecutive Amos 9:3 Imperfect 3 masculine singular ‎יִשֹּׁךְ‎ Eccl 10:11, ‎יִשָּׁ֑ךְ‎ Prov 23:32, suffix ‎יִשְּׁכֶנּוּ‎ Eccl 10:8 Participle active ‎נשֵׁךְ‎ Gen 49:17 plural ‎נשְׁכִים‎ Mic 3:5, suffix ‎נשְׁכֶיךָ‎ Hab 2:7 passive ‎נָשׁוּךְ‎ Num 21:8 — bite, chiefly of serpent, with accusative, Amos 5:19; Amos 9:3; Gen 49:17 (poem in J), Num 21:8 (passive participle, absolute), vNum 21:9, Eccl 10:8 also vEccl 10:11 (absolute), Prov 23:32 (simile of wine); figurative of prophets ‎בְּשִׁנֵּיהֶם‎ ‎׳‎‎הַנּ‎ Mic 3:5 who are biting with their teeth, and crying, Peace! figurative of oppression, etc., ‎נשְׁכֶיךָ‎ Hab 2:7 (with play on sense thy debtors, those that give thee interest). Pi`el Perfect 3 plural ‎וְנִשְּׁכוּ אֶתְכֶם‎ Jer 8:17 and they shall bite you fatally (figurative); Imperfect 3 masculine plural ‎וַיְנַשְּׁכוּ‎ ‎אֶתהָֿעָם‎ Num 21:5 ***and they bit the people fatally(both of serpents). ***

[‎נָשַׁךְ‎] verb denominative pay, give interest (compare Gerber^{Verba denominative 89}); —

Qal Imperfect 3 masculine singular ‎יִשָּׁ֑ךְ‎ Deut 23:20* interest of anything off which one giveth interest (compare Dr). Hiph`il make one give interest; Imperfect 2 masculine singular ‎תַּשִּׁיךְ‎ Deut 23:20* ( + accusative of congnate meaning with verb) v.Deut 23:21* v.Deut 23:21*, all with ‎לְ‎ person

Brown-Driver-Briggs References