Atharvaveda 4.15.10

4.15.10

apā́m agnís tanū́bhiḥ saṃvidānó yá óṣadhīnām adhipā́ babhū́va |
sá no varṣáṃ vanutāṃ jātávedāḥ prāṇáṃ prajā́bhyo amŕ̥taṃ divás pári ||10||

Agni, who, in unison with the waters' selves (tanū́), hath become overlord of the herbs—let him, Jātavedas, win (van) for us rain, breath for [our] progeny, amṛ́ta out of the sky.
The comm. paraphrases amṛtam with amṛtatvaprāpakam. The Anukr. duly notes the redundant syllable in d.