महाभारतः mahābhārataḥ - book-6, chapter-84, verse-10

बभूव सर्वसैन्यानां घोररूपो भयानकः ।
तथैव पाण्डवा हृष्टाः सिंहनादमथानदन् ॥१०॥

10. babhūva sarvasainyānāṁ ghorarūpo bhayānakaḥ ,
tathaiva pāṇḍavā hṛṣṭāḥ siṁhanādamathānadan.

10. babhūva sarvasainyānām ghorarūpaḥ bhayānakaḥ |
tathā eva pāṇḍavāḥ hṛṣṭāḥ siṃhanādam atha anadan

10. sarvasainyānām ghorarūpaḥ bhayānakaḥ babhūva
tathā eva hṛṣṭāḥ pāṇḍavāḥ atha siṃhanādam anadan

10. A terrifying and dreadful atmosphere (or sound) manifested for all armies. And then, the Pāṇḍavas, full of joy, roared a lion's roar.

Words meanings summery:

• बभूव (babhūva) - manifested, arose (became, happened, arose)

• सर्वसैन्यानाम् (sarvasainyānām) - of all armies

• घोररूपः (ghorarūpaḥ) - terrifying, dreadful (of dreadful form, terrifying-looking)

• भयानकः (bhayānakaḥ) - terrifying, frightful

• तथा (tathā) - similarly, and then (thus, so, similarly)

• एव (eva) - indeed, only, even

• पाण्डवाः (pāṇḍavāḥ) - the Pāṇḍavas (sons of Pāṇḍu)

• हृष्टाः (hṛṣṭāḥ) - joyful, elated, glad

• सिंहनादम् (siṁhanādam) - war cry (lion's roar, war cry)

• अथ (atha) - then (then, next, now)

• अनदन् (anadan) - they roared (as a war cry) (they roared, they sounded)

Words meanings and morphology

बभूव (babhūva) - manifested, arose (became, happened, arose)

(verb)

3rd person , singular, active, past perfect (liṭ) of bhū

Perfect Active Indicative

3rd person singular, class 1 Parasmaipada verb

Root: bhū (class 1)

सर्वसैन्यानाम् (sarvasainyānām) - of all armies

(noun)

Genitive, neuter, plural of sarvasainya

sarvasainya - all armies, the entire army

Compound type : karmadhāraya (sarva+sainya)

• sarva – all, every, whole
  adjective (masculine)
• sainya – army, host, military
  noun (neuter)
  Derived from senā (army)

घोररूपः (ghorarūpaḥ) - terrifying, dreadful (of dreadful form, terrifying-looking)

(adjective)

Nominative, masculine, singular of ghorarūpa

ghorarūpa - of dreadful form, terrible-looking

Compound type : karmadhāraya (ghora+rūpa)

• ghora – terrible, dreadful, fearful
  adjective (masculine)
• rūpa – form, shape, appearance
  noun (neuter)

भयानकः (bhayānakaḥ) - terrifying, frightful

(adjective)

Nominative, masculine, singular of bhayānaka

bhayānaka - terrible, frightful, dreadful

Derived from bhaya (fear)

तथा (tathā) - similarly, and then (thus, so, similarly)

(indeclinable)

एव (eva) - indeed, only, even

(indeclinable)

पाण्डवाः (pāṇḍavāḥ) - the Pāṇḍavas (sons of Pāṇḍu)

(proper noun)

Nominative, masculine, plural of pāṇḍava

pāṇḍava - descendant of Pāṇḍu

A patronymic derived from Pāṇḍu

हृष्टाः (hṛṣṭāḥ) - joyful, elated, glad

(adjective)

Nominative, masculine, plural of hṛṣṭa

hṛṣṭa - joyful, glad, pleased; bristling (hair)

Past Passive Participle

Derived from root hṛṣ (to be glad, to bristle)

Root: hṛṣ (class 4)

Note: Used adjectivally here.

सिंहनादम् (siṁhanādam) - war cry (lion's roar, war cry)

(noun)

Accusative, masculine, singular of siṃhanāda

siṁhanāda - lion's roar, battle cry

Compound type : tatpuruṣa (siṃha+nāda)

• siṃha – lion
  noun (masculine)
• nāda – sound, roar, cry
  noun (masculine)
  Root: nad (class 1)

अथ (atha) - then (then, next, now)

(indeclinable)

अनदन् (anadan) - they roared (as a war cry) (they roared, they sounded)

(verb)

3rd person , plural, active, past imperfect (laṅ) of nad

Imperfect Active Indicative

3rd person plural, class 1 Parasmaipada verb, with augment 'a'

Root: nad (class 1)

Note: The augment 'a' of the imperfect tense form is often dropped in sandhi when preceded by 'atha' or similar particles.