महाभारतः mahābhārataḥ - book-7, chapter-135, verse-39

द्रौणिपार्षतयोर्युद्धं घोररूपं भयानकम् ।
दृष्ट्वा संपूजयामासुः सिद्धचारणवातिकाः ॥३९॥

39. drauṇipārṣatayoryuddhaṁ ghorarūpaṁ bhayānakam ,
dṛṣṭvā saṁpūjayāmāsuḥ siddhacāraṇavātikāḥ.

39. drauṇipārṣatayoḥ yuddhaṃ ghorarūpaṃ bhayānakam
dṛṣṭvā saṃpūjayāmāsuḥ siddhacāraṇavātikāḥ

39. siddhacāraṇavātikāḥ drauṇipārṣatayoḥ ghorarūpaṃ
bhayānakam yuddhaṃ dṛṣṭvā saṃpūjayāmāsuḥ

39. When the Siddhas, Cāraṇas, and Vātikas witnessed the dreadful and terrifying battle between Droṇi and Pārṣata (Dhṛṣṭadyumna), they praised it.

Words meanings summery:

• द्रौणिपार्षतयोः (drauṇipārṣatayoḥ) - of Droṇi's son (Aśvatthāman) and Pṛṣata's son (Dhṛṣṭadyumna)

• युद्धं (yuddhaṁ) - battle, combat, war

• घोररूपं (ghorarūpaṁ) - dreadful in form, of terrifying appearance

• भयानकम् (bhayānakam) - terrifying, frightening, horrible, fearful

• दृष्ट्वा (dṛṣṭvā) - having seen, after seeing, upon seeing

• संपूजयामासुः (saṁpūjayāmāsuḥ) - they worshipped, they praised, they honored

• सिद्धचारणवातिकाः (siddhacāraṇavātikāḥ) - Siddhas, Cāraṇas, and Vātikas (classes of celestial beings)

Words meanings and morphology

द्रौणिपार्षतयोः (drauṇipārṣatayoḥ) - of Droṇi's son (Aśvatthāman) and Pṛṣata's son (Dhṛṣṭadyumna)

(proper noun)

Genitive, masculine, dual of drauṇipārṣata

drauṇipārṣata - Drauṇi and Pārṣata (referring to Aśvatthāman and Dhṛṣṭadyumna respectively)

Compound type : dvandva (drauṇi+pārṣata)

• drauṇi – son of Droṇa (Aśvatthāman)
  proper noun (masculine)
• pārṣata – son of Pṛṣata (Dhṛṣṭadyumna)
  proper noun (masculine)

युद्धं (yuddhaṁ) - battle, combat, war

(noun)

Accusative, neuter, singular of yuddha

yuddha - fight, battle, war, combat

Past Passive Participle (substantivized)

Derived from root 'yudh'

Root: yudh (class 4)

घोररूपं (ghorarūpaṁ) - dreadful in form, of terrifying appearance

(adjective)

Accusative, neuter, singular of ghorarūpa

ghorarūpa - having a terrible form, dreadful in appearance

Compound type : karma-dhāraya (ghora+rūpa)

• ghora – dreadful, terrible, frightful, fierce
  adjective
• rūpa – form, shape, appearance, nature
  noun (neuter)

भयानकम् (bhayānakam) - terrifying, frightening, horrible, fearful

(adjective)

Accusative, neuter, singular of bhayānaka

bhayānaka - frightening, terrifying, horrible, dreadful

Derived from 'bhaya' (fear) with suffix '-ānaka'

दृष्ट्वा (dṛṣṭvā) - having seen, after seeing, upon seeing

(indeclinable)

Absolutive (Gerund)

Formed from root 'dṛś' with suffix '-tvā'

Root: dṛś (class 1)

संपूजयामासुः (saṁpūjayāmāsuḥ) - they worshipped, they praised, they honored

(verb)

3rd person , plural, active, perfect (lit) of saṃpūj

Root with prefix 'sam' and causative form

Prefix: sam

Root: pūj (class 10)

सिद्धचारणवातिकाः (siddhacāraṇavātikāḥ) - Siddhas, Cāraṇas, and Vātikas (classes of celestial beings)

(proper noun)

Nominative, masculine, plural of siddhacāraṇavātika

siddhacāraṇavātika - Siddhas, Cāraṇas, and Vātikas (collective noun for celestial beings)

Compound type : dvandva (siddha+cāraṇa+vātika)

• siddha – a perfected being, a semi-divine being with supernatural powers
  proper noun (masculine)
• cāraṇa – a class of celestial bards, wandering musicians or demigods
  proper noun (masculine)
• vātika – a class of celestial beings, perhaps related to Vayu (wind god)
  proper noun (masculine)