נִיר
From LSJ
πρὸς ἀλέξησιν τραπομένους → preparing to defend themselves
English (Strong)
a root probably identical with that of נֵר, through the idea of the gleam of a fresh furrow; to till the soil: break up.
or nir; from נִיר; properly, plowing, i.e. (concretely) freshly plowed land: fallow ground, plowing, tillage.