nigaṇṭha

member of the Jain order (see MN.i.370–MN.i.375 MN.i.380 & cp. jaṭila) Vin.i.233 (Nātaputta, the head of that Order, cp. DN.i.57; also Sīho senāpati n-sāvako); SN.i.78 SN.i.82 (˚bhikkhā); AN.i.205 sq. (˚uposatha), cp. AN.i.220; AN.ii.196 (˚sāvaka); AN.iii.276, AN.iii.383; AN.v.150 (dasahi asaddhammehi samannāgata); Snp.381; Ud.65 (jaṭilā, n., acelā, ekasātā paribbājakā); Ja.ii.262 (object to eating flesh); DN-a.i.162; Dhp-a.i.440; Dhp-a.iii.489; Vv-a.29 (n. nāma samaṇajāti)
■ f nigaṇṭhī DN.i.54 (nigaṇṭhi-gabbha).

BSk. nirgrantha (Divy.143, Divy.262 etc.) “freed from all ties,” nis + gaṇṭhi. This is the customary (correct?) etym. Prk. niggantha, cp. Weber, Bhagavatī p. 165