महाभारतः mahābhārataḥ - book-7, chapter-131, verse-71

ततः स तोयदो भूत्वा नीलः सेन्द्रायुधो दिवि ।
अश्मवृष्टिभिरत्युग्रो द्रौणिमाच्छादयद्रणे ॥७१॥

71. tataḥ sa toyado bhūtvā nīlaḥ sendrāyudho divi ,
aśmavṛṣṭibhiratyugro drauṇimācchādayadraṇe.

71. tataḥ saḥ toyadaḥ bhūtvā nīlaḥ sa-indrāyudhaḥ divi
aśma-vṛṣṭibhiḥ atyugraḥ drauṇim ācchādayat raṇe

71. tataḥ saḥ nīlaḥ sa-indrāyudhaḥ toyadaḥ bhūtvā divi atyugraḥ aśma-vṛṣṭibhiḥ raṇe drauṇim ācchādayat.

71. Then, having transformed into a blue cloud adorned with a rainbow in the sky, that exceedingly fierce (mountain-warrior) covered Drauṇi with a hail of stones in the battle.

Words meanings summery:

• ततः (tataḥ) - then, thereupon, from that

• सः (saḥ) - he, that

• तोयदः (toyadaḥ) - cloud, water-giver

• भूत्वा (bhūtvā) - having been, having become

• नीलः (nīlaḥ) - blue, dark, black

• स-इन्द्रायुधः (sa-indrāyudhaḥ) - with a rainbow, with Indra's bow

• दिवि (divi) - in the sky, in heaven

• अश्म-वृष्टिभिः (aśma-vṛṣṭibhiḥ) - with showers of stones, with hail of stones

• अत्युग्रः (atyugraḥ) - exceedingly fierce, very terrible

• द्रौणिम् (drauṇim) - Drauṇi (Aśvatthāmā) (son of Droṇa, Aśvatthāmā)

• आच्छादयत् (ācchādayat) - he covered, he enveloped

• रणे (raṇe) - in battle, in war, in combat

Words meanings and morphology

ततः (tataḥ) - then, thereupon, from that

(indeclinable)

सः (saḥ) - he, that

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

तोयदः (toyadaḥ) - cloud, water-giver

(noun)

Nominative, masculine, singular of toyada

toyada - cloud, water-giver

Compound of toya (water) and da (giver)

Compound type : tatpuruṣa (toya+da)

• toya – water
  noun (neuter)
• da – giver, bestower
  noun (masculine)
  Agent noun from root dā (to give)
  Root: dā (class 3)

भूत्वा (bhūtvā) - having been, having become

(indeclinable)

Absolutive

From root bhū (to be, to become), with -tvā suffix

Root: bhū (class 1)

नीलः (nīlaḥ) - blue, dark, black

(adjective)

Nominative, masculine, singular of nīla

nīla - blue, dark blue, black, indigo

स-इन्द्रायुधः (sa-indrāyudhaḥ) - with a rainbow, with Indra's bow

(adjective)

Nominative, masculine, singular of sa-indrāyudha

sa-indrāyudha - with Indra's bow, possessing a rainbow

Bahuvrīhi compound, 'accompanied by Indra's weapon'

Compound type : bahuvrīhi (sa+indrāyudha)

• sa – with, accompanied by
  indeclinable
  Prefix indicating accompaniment
• indrāyudha – Indra's bow, rainbow
  noun (neuter)
  Compound of Indra (name of deity) and āyudha (weapon)

दिवि (divi) - in the sky, in heaven

(noun)

Locative, feminine, singular of div

div - sky, heaven, day

अश्म-वृष्टिभिः (aśma-vṛṣṭibhiḥ) - with showers of stones, with hail of stones

(noun)

Instrumental, feminine, plural of aśma-vṛṣṭi

aśma-vṛṣṭi - hail of stones, shower of rocks

Compound of aśman (stone) and vṛṣṭi (rain, shower)

Compound type : tatpuruṣa (aśman+vṛṣṭi)

• aśman – stone, rock
  noun (masculine)
• vṛṣṭi – rain, shower, showering
  noun (feminine)
  Root: vṛṣ (class 1)

अत्युग्रः (atyugraḥ) - exceedingly fierce, very terrible

(adjective)

Nominative, masculine, singular of atyugra

atyugra - exceedingly fierce, very terrible, extremely violent

Compound of ati (very, exceedingly) and ugra (fierce, terrible)

Compound type : karmadhāraya (ati+ugra)

• ati – over, beyond, exceeding, excessively
  indeclinable
  Prefix indicating excess
• ugra – fierce, terrible, powerful, strong
  adjective (masculine)

द्रौणिम् (drauṇim) - Drauṇi (Aśvatthāmā) (son of Droṇa, Aśvatthāmā)

(proper noun)

Accusative, masculine, singular of drauṇi

drauṇi - son of Droṇa, Aśvatthāmā

Patronymic from Droṇa

आच्छादयत् (ācchādayat) - he covered, he enveloped

(verb)

3rd person , singular, active, imperfect (laṅ) of ā-chad

Imperfect

Causative of chad (to cover), Class 10, with prefix ā

Prefix: ā

Root: chad (class 10)

रणे (raṇe) - in battle, in war, in combat

(noun)

Locative, masculine, singular of raṇa

raṇa - battle, war, combat, conflict