Vagga¹

1. a company, section group, party Vin.i.58 (du˚, ti˚), Vin.i.195 (dasa˚ a chapter of 10 bhikkhus).
2. a section or chapter of a canonical book Dhp-a.i.158 (eka-vagga-dvi-vagga-mattam pi) Dhs-a.27.

• -uposatha celebration (of the uposatha) in groups “incomplete congregation” (translation Oldenberg) Dpvs.7 36. More likely to vagga²!
• -gata following a (sectarian) party (Bdhgh identifies this with the 62 diṭṭhigatikā Snp-a.365) SN.i.187; Snp.371.
• -bandha, in instr ˚ena group by group Mhvs.32, Mhvs.11.
• -bandhana banded together, forming groups Dhp-a.iv.93, Dhp-a.iv.94.
• -vagga in crowds, confused, heaped up Ja.vi.224; Pv-a.54.
• -vādaka taking somebody’s part Vin.iii.175.
• -sārin conforming to a (heretic) party Snp.371, Snp.800, Snp.912; Mnd.108, Mnd.329.

Vedic varga, fr. vṛj; cp. Lat. volgus & vulgus (= E. vulgar) crowd, people

Vagga²

adjective noun dissociated, separated; incomplete; at difference dissentious Vin.i.111 sq., Vin.i.129, Vin.i.160; Vin.iv.53 (sangha) AN.i.70 (parisā); AN.ii.240
■ instr. vaggena separately secessionally, sectariously Vin.i.161; Vin.iv.37, Vin.iv.126.

-ārāma fond of dissociation or causing separation MN.i.286; Iti.11 (+ adhamma-ṭṭha; translation Seidenstücker not quite to the point: rejoicing in parties, i.e. vagga¹ = Vin.ii.205. -kamma (ecclesiastical) act of an incomplete chapter of bhikkhus Vin.i.315 sq. (opp. sam agga-kamma)
■ rata = ˚ārāma.

vi + agga, Sk. vyagra; opposed to samagga