Lexical Definition

‎זָנַב‎ zânab (zaw-nab') to cut off the tail ^H:V
a primitive root meaning to wag; used only as a denominative from ‎זָנָב‎

smite the hindmost.

• to curtail, i.e. cut off the rear

1) to cut off
1a) (Piel) to attack the rear, smite the tail

See Greek: καταλαμβάνω · κόπτω

Brown-Driver-Briggs

[‎זִנֵּב‎] verbdenominative Pi`el cut off, or smite, the tail, only figurative, of hostile attack in war; Perfect consecutive 2 masculine plural ‎וְזִנַּבְתֶּם‎ Josh 10:19 (followed by ‎אֹתָם‎); Imperfect 3 masculine singular ‎וַיְזַנֵּב בְּךָ כָּלהַֿנֶּחֱשָׁלִים‎ Deut 25:18 in both = attack or smite in the rear.

Brown-Driver-Briggs References