to give advice, to admonish exhort, instruct, usually comb^d. with anusāsati
pres ovadati Vin.iv.52 sq.; Dhp-a.i.11, Dhp-a.i.13;
imper ovadatu MN.iii.267
pot ovadeyya Vin.iv.52 (= aṭṭhahi garudhammehi ovadati); Snp.1051 (= anusāseyya)
aor ovadi Dhp-a.i.397
inf ovadituṃ Vin.i.59 (+ anusāsituṃ)
grd ovaditabba Vin.ii.5; and ovadiya (see sep.)
pass avadiyati; ppr. -iyamāna Pp.64 (anusāsiyamāna).

o + vadati. The Sk. avavadati is some centuries later and is diff. in meaning