Strong's Definition
a root probably identical with that of 5216, through the idea of the gleam of a fresh furrow; to till the soil
KJV Usage: break up
STEPBible — Tyndale Abridged Hebrew Lexicon
נִיר (nir) — to break. (Qal) to break up, freshly plough or till
UBS Dictionary of Biblical Hebrew
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
[נִיר] vb. break up, freshly till base