vaṇijjā

trade, trading MN.ii.198; Snp.404 (payojaye dhammikaṃ so vaṇijjaṃ); AN.ii.81 sq.; Pv.i.5#6 (no trade among the Petas); Ja.i.169; Pv-a.47 (tela˚) Sdhp.332, Sdhp.390
Five trades must not be carried on by lay followers of the Buddha, viz. sattha˚; trade in swords satta˚; in living beings, maṃsa˚; in meat, majja˚; in intoxicants, visa˚; in poisons AN.iii.208, quoted at DN-a.i.235 and Snp-a.379.

Vedic vaṇijyā, fr. vaṇij˚ (vaṇik) merchant, cp. vāṇija & vaṇibbaka