nārāca

an iron weapon, an arrow or javelin MN.i.429; Ja.iii.322; Mil.105, Mil.244, Mil.418 -valaya an iron ring or collar (?) Mhvs.vii.20 (Com “vaṭṭita-assanārāca-pasa” = a noose formed by bending the ends of the n. into a circle).

Sk. nārāca; perhaps for *nāḍāca & conn. with nālīka, a kind of arrow, to nāḷa