Dictionary Definition:
Vatta1 (nt.) [orig. pp. of vattati] 1. that which is done, which goes on or is customary, i. e. duty, service, custom, function Vin ii.31; Sn 294, 393 (gahaṭṭha˚); Vism 188 (cetiy' angaṇa˚ etc.); DhA i.92 (ācariya˚); VbhA 354 (gata -- paccāgata˚); VvA 47 (gāma˚). -- 2. (for vata2) observance, vow, virtue D iii.9 (the 7 vattapadāni, diff. from those enumd under vata -- pada); Nd1 66 (sīlañ ca vattañ ca), 92 (hatthi˚ etc.: see vata2 2), 104 (˚suddhi), 106 (id.), 188 (giving 8 dhutangas as vattas).
-- paṭivatta all kinds of practices or duties J i.67; ii.103; iii.339; iv.298; Miln 416 (sucarita˚); DhA i.13 sq.; ii.277; iv.28. -- bbata the usual custom DhAiv.44; C on S i.36 § 2 and on S ii.18 § 4 sq. -- sampanna one who keeps all observances VbhA 297 (where the foll. vattāni are enumd: 82 khuddaka -- vattāni. 14 mahā˚, cetiyangaṇa˚, bodhiyangaṇa˚, pānīyamāḷa˚, uposathāgāra˚, āgantuka˚, gamika˚).