Nigha¹

(nīgha) adjective noun is invented by Com. & scholiasts to explain the combⁿ anigha (anīgha sporadic, e.g. SN.v.57). But this should be divided an-īgha instead of a-nīgha
■ (m.) rage, trembling, confusion, only in formula rāgo n. doso n. moho n. explaining the adj anīgha. Thus at SN.iv.292 = Cnd.45; SN.v.57
■ (adj. anigha not trembling, undisturbed, calm nirāsa*: SN.i.12 = SN.i.23, SN.i.141; Snp.1048, Snp.1060, Snp.1078. Explained correctly at Snp-a.590 by rāgādi-īgha-virahita. Spelling anīgha Ja.iii.443 (Com. niddukkha); Pv.iv.1#34 (+ nirāsa explained by niddukkha Pv-a.230). anīgha also at Iti.97 (+ chinnasaṃsaya); Ud.76; Dhp.295 (variant reading aniggha explained by niddukkha Dhp-a.iii.454).

Nigha²

neuter killing, destruction Thig.491 (= maraṇasampāpana Thag-a.288).

prob. ni + gha = Sk. ˚gha of hanati (see also P. ˚gha), to kill; unless abstracted from anigha as in prec. nigha¹