महाभारतः mahābhārataḥ - book-5, chapter-68, verse-5

कृषिर्भूवाचकः शब्दो णश्च निर्वृतिवाचकः ।
कृष्णस्तद्भावयोगाच्च कृष्णो भवति शाश्वतः ॥५॥

5. kṛṣirbhūvācakaḥ śabdo ṇaśca nirvṛtivācakaḥ ,
kṛṣṇastadbhāvayogācca kṛṣṇo bhavati śāśvataḥ.

5. kṛṣiḥ bhūvācakaḥ śabdaḥ ṇaḥ ca nirvṛtivācakaḥ
kṛṣṇaḥ tadbhāvayogāt ca kṛṣṇaḥ bhavati śāśvataḥ

5. The syllable "kṛṣ" denotes existence or earth, and the syllable "ṇa" signifies bliss or the cessation of suffering. Thus, Kṛṣṇa, through the combination of these two meanings (tadbhāvayoga), becomes the eternal (śāśvata) Kṛṣṇa.

Words meanings summery:

• कृषिः (kṛṣiḥ) - The syllable "kṛṣ" (as part of the name Kṛṣṇa) (the syllable "kṛṣ", agriculture, ploughing)

• भूवाचकः (bhūvācakaḥ) - signifying earth, signifying existence

• शब्दः (śabdaḥ) - word, sound, syllable

• णः (ṇaḥ) - the syllable "ṇa"

• च (ca) - and, also

• निर्वृतिवाचकः (nirvṛtivācakaḥ) - signifying bliss, signifying cessation of misery

• कृष्णः (kṛṣṇaḥ) - The proper name Kṛṣṇa (Kṛṣṇa (proper name), black, dark)

• तद्भावयोगात् (tadbhāvayogāt) - from the combination of those meanings, from the union of that nature

• च (ca) - and, also

• कृष्णः (kṛṣṇaḥ) - The proper name Kṛṣṇa (Kṛṣṇa (proper name), black, dark)

• भवति (bhavati) - becomes, is, exists

• शाश्वतः (śāśvataḥ) - eternal, perpetual, everlasting

Words meanings and morphology

कृषिः (kṛṣiḥ) - The syllable "kṛṣ" (as part of the name Kṛṣṇa) (the syllable "kṛṣ", agriculture, ploughing)

(noun)

Nominative, feminine, singular of kṛṣi

kṛṣi - agriculture, ploughing; in context, the syllable 'kṛṣ'

From root kṛṣ (to plough) + i (suffix).

Root: kṛṣ (class 1)

भूवाचकः (bhūvācakaḥ) - signifying earth, signifying existence

(adjective)

Nominative, masculine, singular of bhūvācaka

bhūvācaka - expressing 'bhū' (earth/existence)

Compound type : tatpurusha (bhū+vācaka)

• bhū – earth, ground, existence, being
  noun (feminine)
  From root bhū (to be, to become).
  Root: bhū (class 1)
• vācaka – expressing, signifying, speaker
  adjective (masculine)
  From root vac (to speak) + ṇvul (suffix).
  Root: vac (class 2)

शब्दः (śabdaḥ) - word, sound, syllable

(noun)

Nominative, masculine, singular of śabda

śabda - sound, word, speech, syllable

णः (ṇaḥ) - the syllable "ṇa"

(noun)

Nominative, masculine, singular of ṇa

ṇa - the letter/syllable 'ṇa'

च (ca) - and, also

(indeclinable)

निर्वृतिवाचकः (nirvṛtivācakaḥ) - signifying bliss, signifying cessation of misery

(adjective)

Nominative, masculine, singular of nirvṛtivācaka

nirvṛtivācaka - expressing 'nirvṛti' (bliss/cessation of misery)

Compound type : tatpurusha (nirvṛti+vācaka)

• nirvṛti – bliss, happiness, cessation of misery, tranquility
  noun (feminine)
  From root vṛt (to be) with prefix nir (out, away).
  Prefix: nir
  Root: vṛt (class 1)
• vācaka – expressing, signifying, speaker
  adjective (masculine)
  From root vac (to speak) + ṇvul (suffix).
  Root: vac (class 2)

कृष्णः (kṛṣṇaḥ) - The proper name Kṛṣṇa (Kṛṣṇa (proper name), black, dark)

(proper noun)

Nominative, masculine, singular of kṛṣṇa

kṛṣṇa - Kṛṣṇa, black, dark, epithet of Vishnu

तद्भावयोगात् (tadbhāvayogāt) - from the combination of those meanings, from the union of that nature

(noun)

Ablative, masculine, singular of tadbhāvayoga

tadbhāvayoga - combination/union of its nature/meaning

Compound type : tatpurusha (tat+bhāva+yoga)

• tat – that, those
  pronoun (neuter)
• bhāva – state of being, nature, meaning, sentiment, existence
  noun (masculine)
  From root bhū (to be, to become) + a (suffix).
  Root: bhū (class 1)
• yoga – union, spiritual discipline, joining, application, concentration
  noun (masculine)
  From root yuj (to join, to yoke) + ghañ (nominal suffix).
  Root: yuj (class 7)

च (ca) - and, also

(indeclinable)

कृष्णः (kṛṣṇaḥ) - The proper name Kṛṣṇa (Kṛṣṇa (proper name), black, dark)

(proper noun)

Nominative, masculine, singular of kṛṣṇa

kṛṣṇa - Kṛṣṇa, black, dark, epithet of Vishnu

भवति (bhavati) - becomes, is, exists

(verb)

3rd person , singular, active, present (laṭ) of bhū

Root: bhū (class 1)

शाश्वतः (śāśvataḥ) - eternal, perpetual, everlasting

(adjective)

Nominative, masculine, singular of śāśvata

śāśvata - eternal, perpetual, everlasting, constant

From śaśvat (ever) + aṇ (suffix).