saḥ - that creature; vai - indeed; bakaḥ nāma - by the name Bakāsura; mahān asuraḥ - a great, gigantic demon; baka-rūpa-dhṛk - assumed the bodily shape of a big duck; āgatya - coming there; sahasā - all of a sudden; kṛṣṇam - Kṛṣṇa; tīkṣṇa-tuṇḍaḥ - sharp beak; agrasat - swallowed; balī - very powerful.

That great-bodied demon was named Bakāsura. He had assumed the body of a duck with a very sharp beak. Having come there, he immediately swallowed Kṛṣṇa.