Dictionary Definition:
abhy-√ūrṇu abhy-ū́rṇoti (Imper. 2. sg. -ūrṇuhi) to cover, conceal RV. viii, 79, 2 and x, 18, 11 AV.: Ā. -ūrṇuté (p. f. -urṇvānā́) to cover or conceal one's self AV. xiv, 1, 27 RV. v, 41, 19