Atharvaveda 5.12.6

5.12.6

ā́ suṣváyantī yajaté upā́ke uṣā́sānáktā sadatāṃ ní yónau |
divyé yóṣaṇe br̥hatī́ surukmé ádhi śríyaṃ śukrapíśaṃ dádhāne ||6||

Let Dawn and Night, dripping (? suṣvay-), worshipful, close, sit down here in the lair (yóni)—the two heavenly, great, well-shining women, putting on beauty (çrī́) with bright adornment.
The other texts differ from ours only by accenting úpāke. ⌊The comment to Prāt, ii. 91 cites suṣvay as a case of reduplication; and BR. vii. 1142 connect it with su 'impel.' But see Weber.—He renders ā́ by 'Heran.'⌋