pāti

to watch, keep watch, keep Ja.iii.95 (to keep the eyes open, C. ummisati; opp nimisati); Vism.16 (= rakkhati in def. of pāṭimokkha).

Vedic pāti of , cp. Gr. π ̈ωυ herd, ποιμήν shepherd, Lat. pāsco to tend sheep