PTS Pali-English dictionary - The Pali Text Society's Pali-English dictionary
anāvasūraṁ
Anāvasūraṁ,(adv.) [an + ava + sūra = suriya,with ava lengthened to āva in verse] as long as the sun does not set,before sun-down J v.56 (= anatthaṅgata-suriyaṁ C.) cp. Sk. utsūra. (Page 32)
U Hau Sein’s Pāḷi-Myanmar Dictionary ပါဠိျမန္မာ အဘိဓာန္(ဦးဟုတ္စိန္)