महाभारतः mahābhārataḥ - book-7, chapter-148, verse-55

स भवान्यातु कर्णेन द्वैरथं युध्यतां निशि ।
सात्यकिः पृष्ठगोपस्ते भविष्यति महारथः ॥५५॥

55. sa bhavānyātu karṇena dvairathaṁ yudhyatāṁ niśi ,
sātyakiḥ pṛṣṭhagopaste bhaviṣyati mahārathaḥ.

55. sa bhavān yātu karṇena dvairatham yudhyatām niśi
sātyakiḥ pṛṣṭhagopaḥ te bhaviṣyati mahārathaḥ

55. sa bhavān niśi karṇena dvairatham yātu yudhyatām
te pṛṣṭhagopaḥ sātyakiḥ mahārathaḥ bhaviṣyati

55. Therefore, you (Ghaṭotkaca) should go and fight Karṇa in a chariot duel (dvairatham) tonight. The great warrior (mahāratha) Sātyaki will be your rear-guard.

Words meanings summery:

• स (sa) - referring to Ghaṭotkaca mentioned in the previous verse (he, that)

• भवान् (bhavān) - referring to Ghaṭotkaca (you (honorific singular))

• यातु (yātu) - let him go, may you go, you should go

• कर्णेन (karṇena) - by Karṇa, with Karṇa

• द्वैरथम् (dvairatham) - a chariot duel, single combat (involving two chariots)

• युध्यताम् (yudhyatām) - let him fight, you should fight

• निशि (niśi) - at night, in the night

• सात्यकिः (sātyakiḥ) - Sātyaki

• पृष्ठगोपः (pṛṣṭhagopaḥ) - rear-guard, protector of the rear

• ते (te) - your (rear-guard) (your, for you)

• भविष्यति (bhaviṣyati) - will be

• महारथः (mahārathaḥ) - a great warrior, mahāratha

Words meanings and morphology

स (sa) - referring to Ghaṭotkaca mentioned in the previous verse (he, that)

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

भवान् (bhavān) - referring to Ghaṭotkaca (you (honorific singular))

(pronoun)

Nominative, masculine, singular of bhavat

bhavat - your honor, you, esteemed one

यातु (yātu) - let him go, may you go, you should go

(verb)

3rd person , singular, active, imperative (loṭ) of yā

Root: yā (class 2)

Note: Used here honorifically for 2nd person singular.

कर्णेन (karṇena) - by Karṇa, with Karṇa

(proper noun)

Instrumental, masculine, singular of karṇa

karṇa - Karṇa, a great warrior and son of Sūrya and Kuntī

द्वैरथम् (dvairatham) - a chariot duel, single combat (involving two chariots)

(noun)

Accusative, neuter, singular of dvairatha

dvairatha - a combat between two chariots or two chariot warriors

Compound type : dvigu (dvi+ratha)

• dvi – two
  numeral
• ratha – chariot
  noun (masculine)

युध्यताम् (yudhyatām) - let him fight, you should fight

(verb)

3rd person , singular, middle, imperative (loṭ) of yudh

Root: yudh (class 4)

Note: Used here honorifically for 2nd person singular.

निशि (niśi) - at night, in the night

(noun)

Locative, feminine, singular of niś

niś - night

सात्यकिः (sātyakiḥ) - Sātyaki

(proper noun)

Nominative, masculine, singular of sātyaki

sātyaki - Sātyaki, a prominent warrior of the Vṛṣṇi clan, Kṛṣṇa's charioteer

पृष्ठगोपः (pṛṣṭhagopaḥ) - rear-guard, protector of the rear

(noun)

Nominative, masculine, singular of pṛṣṭhagopa

pṛṣṭhagopa - rear-guard, protector of the back

Compound type : ṣaṣṭhī-tatpuruṣa (pṛṣṭha+gopa)

• pṛṣṭha – back, rear
  noun (neuter)
• gopa – protector, herdsman
  noun (masculine)
  Root: gup (class 1)

ते (te) - your (rear-guard) (your, for you)

(pronoun)

Genitive, singular of yuṣmad

yuṣmad - you

भविष्यति (bhaviṣyati) - will be

(verb)

3rd person , singular, active, future (lṛṭ) of bhū

Root: bhū (class 1)

महारथः (mahārathaḥ) - a great warrior, mahāratha

(noun)

Nominative, masculine, singular of mahāratha

mahāratha - a great warrior, one capable of fighting ten thousand archers at once

Compound type : karmadhāraya (mahā+ratha)

• mahā – great, large, mighty
  adjective (masculine)
• ratha – chariot; charioteer, warrior in a chariot
  noun (masculine)