Śatapatha Brāhmaṇa ("of a hundred paths") 4.5.4.2

4.5.4.2

te 'rcantaḥ śrāmyantaśceruḥ | ta etānatigrāhyāndadṛśustānatyagṛhṇata tadyadenānatyagṛhṇata tasmādatigrāhyā nāma te 'tiṣṭhāvāno 'bhavanyathaita etadatiṣṭhevātiṣṭheva ha vai bhavati yasyaivaṃ viduṣa etāngrahāngṛhṇanti

They went on praising and toiling. They saw those Atigrâhyas, and drew (grah) them for themselves over and above (ati): hence the name Atigrâhyas. They became superior, even as they are now superior and verily he becomes superior for whomsoever, knowing this, they draw those cups of Soma.