महाभारतः mahābhārataḥ - book-7, chapter-56, verse-31

यथा त्वमप्रभातायामस्यां निशि रथोत्तमम् ।
कल्पयित्वा यथाशास्त्रमादाय व्रतसंयतः ॥३१॥

31. yathā tvamaprabhātāyāmasyāṁ niśi rathottamam ,
kalpayitvā yathāśāstramādāya vratasaṁyataḥ.

31. yathā tvam aprabhātāyām asyām niśi ratha-uttamam
kalpayitvā yathā-śāstram ādāya vrata-saṃyataḥ

31. yathā tvam aprabhātāyām asyām niśi ratha-uttamam
yathā-śāstram kalpayitvā vratasaṃyataḥ ādāya

31. Just as you, restrained by vows (vrata), in this night before dawn, having prepared the excellent chariot according to the scriptures, and having taken up [the equipment]...

Words meanings summery:

• यथा (yathā) - just as, in which way, as

• त्वम् (tvam) - you

• अप्रभातायाम् (aprabhātāyām) - in the night before dawn (in the not-yet-dawned, in the unilluminated)

• अस्याम् (asyām) - in this

• निशि (niśi) - in the night

• रथ-उत्तमम् (ratha-uttamam) - the excellent chariot, the best chariot

• कल्पयित्वा (kalpayitvā) - having prepared, having arranged, having fashioned

• यथा-शास्त्रम् (yathā-śāstram) - according to the scriptures, as per the sacred texts

• आदाय (ādāya) - having taken, having seized, having received

• व्रत-संयतः (vrata-saṁyataḥ) - restrained by vows, disciplined by observances

Words meanings and morphology

यथा (yathā) - just as, in which way, as

(indeclinable)

त्वम् (tvam) - you

(pronoun)

Nominative, singular of tvad

tvad - you

अप्रभातायाम् (aprabhātāyām) - in the night before dawn (in the not-yet-dawned, in the unilluminated)

(adjective)

Locative, feminine, singular of aprabhātā

aprabhātā - not dawned, unilluminated

Compound type : nañ-tatpuruṣa (a+prabhātā)

• a – not, un-
  indeclinable
• prabhātā – dawned, illuminated (feminine)
  adjective (feminine)
  Past Passive Participle
  Past Passive Participle of pra-bhā
  Prefix: pra
  Root: bhā (class 2)

अस्याम् (asyām) - in this

(pronoun)

Locative, feminine, singular of idam

idam - this

निशि (niśi) - in the night

(noun)

Locative, feminine, singular of niś

niś - night

रथ-उत्तमम् (ratha-uttamam) - the excellent chariot, the best chariot

(noun)

Accusative, masculine, singular of rathottama

rathottama - excellent chariot, best of chariots

Compound type : karmadhāraya (ratha+uttama)

• ratha – chariot
  noun (masculine)
  Root: ram (class 1)
• uttama – best, excellent, highest
  adjective

कल्पयित्वा (kalpayitvā) - having prepared, having arranged, having fashioned

(indeclinable)

Absolutive

Absolutive (gerund) formed from the causative stem of root kḷp with -tvā suffix

Root: kḷp (class 10)

यथा-शास्त्रम् (yathā-śāstram) - according to the scriptures, as per the sacred texts

(indeclinable)

Compound type : avyayībhāva (yathā+śāstra)

• yathā – as, according to
  indeclinable
• śāstra – scripture, rule, treatise
  noun (neuter)

आदाय (ādāya) - having taken, having seized, having received

(indeclinable)

Absolutive

Absolutive (gerund) formed from root dā with prefix ā- and -ya suffix

Prefix: ā

Root: dā (class 3)

व्रत-संयतः (vrata-saṁyataḥ) - restrained by vows, disciplined by observances

(adjective)

Nominative, masculine, singular of vratasaṃyata

vratasaṁyata - restrained by vows, disciplined by observances

Compound type : tṛtīyā-tatpuruṣa (vrata+saṃyata)

• vrata – vow, sacred observance, religious practice
  noun (neuter)
• saṃyata – restrained, controlled, disciplined
  adjective
  Past Passive Participle
  Past Passive Participle of root yam with prefix sam-
  Prefix: sam
  Root: yam (class 1)