महाभारतः mahābhārataḥ - book-2, chapter-22, verse-16

शक्रविष्णू हि संग्रामे चेरतुस्तारकामये ।
रथेन तेन तं कृष्ण उपारुह्य ययौ तदा ॥१६॥

16. śakraviṣṇū hi saṁgrāme ceratustārakāmaye ,
rathena tena taṁ kṛṣṇa upāruhya yayau tadā.

16. śakraviṣṇū hi saṃgrāme ceratuḥ tārakāmaye
rathena tena tam kṛṣṇaḥ upāruhya yayau tadā

16. Indeed, Indra and Vishnu (śakra-viṣṇū) fought in the Tārakā-maya war. Then, Krishna (kṛṣṇa), ascending with Arjuna in that very chariot, went forth.

Words meanings summery:

• शक्रविष्णू (śakraviṣṇū) - Indra and Vishnu

• हि (hi) - indeed (indeed, surely, for, because)

• संग्रामे (saṁgrāme) - in battle, in war

• चेरतुः (ceratuḥ) - they fought (they moved, they acted, they fought)

• तारकामये (tārakāmaye) - in the Tārakā-maya war (a specific mythical battle) (in the Tārakā-maya war (war with Tāraka), related to Tāraka, concerning Tāraka)

• रथेन (rathena) - by the chariot

• तेन (tena) - by that

• तम् (tam) - with him (Arjuna) (him, that)

• कृष्णः (kṛṣṇaḥ) - Krishna

• उपारुह्य (upāruhya) - having taken his place (as charioteer) (having ascended, having mounted)

• ययौ (yayau) - he went, he proceeded

• तदा (tadā) - then, at that time

Words meanings and morphology

शक्रविष्णू (śakraviṣṇū) - Indra and Vishnu

(proper noun)

Nominative, masculine, dual of śakraviṣṇu

śakraviṣṇu - Indra and Vishnu

Compound type : dvandva (śakra+viṣṇu)

• śakra – Indra (proper name)
  proper noun (masculine)
• viṣṇu – Vishnu (proper name)
  proper noun (masculine)

Note: Subject of the verb ceratuḥ.

हि (hi) - indeed (indeed, surely, for, because)

(indeclinable)

Note: Emphatic particle.

संग्रामे (saṁgrāme) - in battle, in war

(noun)

Locative, masculine, singular of saṃgrāma

saṁgrāma - battle, war

Prefix: sam

Root: gram (class 1)

चेरतुः (ceratuḥ) - they fought (they moved, they acted, they fought)

(verb)

3rd person , dual, active, perfect (liṭ) of car

Root: car (class 1)

Note: Refers to Śakra and Viṣṇu.

तारकामये (tārakāmaye) - in the Tārakā-maya war (a specific mythical battle) (in the Tārakā-maya war (war with Tāraka), related to Tāraka, concerning Tāraka)

(adjective)

Locative, masculine, singular of tārakāmaya

tārakāmaya - related to Tāraka, concerning Tāraka

Suffix -maya.

Compound type : tatpuruṣa (tāraka+maya)

• tāraka – Tāraka (proper name of a demon)
  proper noun (masculine)
• maya – consisting of, made of, relating to (suffix)
  suffix (adjective-forming) (masculine)

Note: Qualifies saṃgrāme.

रथेन (rathena) - by the chariot

(noun)

Instrumental, masculine, singular of ratha

ratha - chariot

Note: By means of the chariot.

तेन (tena) - by that

(pronoun)

Instrumental, masculine, singular of tad

tad - that, he, she, it

Note: Qualifies rathena.

तम् (tam) - with him (Arjuna) (him, that)

(pronoun)

Accusative, masculine, singular of tad

tad - that, he, she, it

Note: Refers to Arjuna.

कृष्णः (kṛṣṇaḥ) - Krishna

(proper noun)

Nominative, masculine, singular of kṛṣṇa

kṛṣṇa - Krishna (proper name)

Note: Subject of the verb yayau.

उपारुह्य (upāruhya) - having taken his place (as charioteer) (having ascended, having mounted)

(indeclinable)

absolutive

Absolutive from root ruh with prefixes upa and ā.

Prefixes: upa+ā

Root: ruh (class 1)

Note: Modifies the action of Krishna going.

ययौ (yayau) - he went, he proceeded

(verb)

3rd person , singular, active, perfect (liṭ) of yā

Root: yā (class 2)

Note: Refers to Krishna.

तदा (tadā) - then, at that time

(indeclinable)

Note: Adverb of time.