कृषिर्भूवाचकः शब्दो णश्च निर्वृतिवाचकः ।
तयोरैक्यं परं ब्रह्म कृष्ण इत्यभिधीयते ॥
kṛṣir bhū-vācakaḥ śabdo ṇaś ca nirvṛti-vācakaḥ |
tayor aikyaṁ paraṁ brahma kṛṣṇa ity abhidhīyate ||
(Mahābhārata: Udyoga-parva: 71.4; cited in Caitanya-caritāmṛta: 2.9.30 and Jīva Gosvāmī’s ṭīkā on Brahma-saṁhitā: 5.1)
“The word [i.e., root] kṛṣ is a signifier of existence, and [the suffix] ṇa is a signifier of bliss. The oneness of the two [i.e., of the referrents of kṛṣ and ṇa, that is, existence and bliss], Parabrahman, is thus referred to as Kṛṣṇa.”