amā—vāsyā̀ (-vāsyā̀), f. (scil. rātri; fr. √ 5. vas, ‘to dwell’, with amā́, ‘together’) the night of new moon (when the sun and moon ‘dwell together’), the first day of the first quarter on which the moon is invisible, [AV.]; [ŚBr.] &c.
a sacrifice offered at that time
N. of the Acchodā river, [MatsyaP.]
amā-vāsyā́ See [ib.]