महाभारतः mahābhārataḥ - book-7, chapter-100, verse-39

तत्र राजन्महानासीत्संग्रामो भूरिवर्धनः ।
रुद्रस्याक्रीडसंकाशः संहारः सर्वदेहिनाम् ॥३९॥

39. tatra rājanmahānāsītsaṁgrāmo bhūrivardhanaḥ ,
rudrasyākrīḍasaṁkāśaḥ saṁhāraḥ sarvadehinām.

39. tatra rājan mahān āsīt saṅgrāmaḥ bhūrivardhanaḥ
rudrasya ākrīḍasaṅkāśaḥ saṃhāraḥ sarvadehinām

39. rājan,
tatra mahān bhūrivardhanaḥ saṅgrāmaḥ āsīt,
[yaḥ] rudrasya ākrīḍasaṅkāśaḥ sarvadehinām saṃhāraḥ [iva āsīt]

39. O King, a great and immensely destructive battle took place there, resembling Rudra's (Rudra) sport of annihilation for all embodied beings.

Words meanings summery:

• तत्र (tatra) - then, at that time/place (referring to the ongoing battle) (there, then, in that place)

• राजन् (rājan) - O King

• महान् (mahān) - great, mighty, large

• आसीत् (āsīt) - occurred, took place (was, existed)

• सङ्ग्रामः (saṅgrāmaḥ) - battle, war, conflict

• भूरिवर्धनः (bhūrivardhanaḥ) - immensely destructive (of life/forces) (greatly increasing, highly destructive, greatly growing)

• रुद्रस्य (rudrasya) - of Rudra

• आक्रीडसङ्काशः (ākrīḍasaṅkāśaḥ) - like a destructive sport (resembling a sport/play, similar to a playground)

• संहारः (saṁhāraḥ) - destruction, annihilation, withdrawal

• सर्वदेहिनाम् (sarvadehinām) - of all embodied beings, of all living creatures

Words meanings and morphology

तत्र (tatra) - then, at that time/place (referring to the ongoing battle) (there, then, in that place)

(indeclinable)

Note: Adverb of place/time.

राजन् (rājan) - O King

(noun)

Vocative, masculine, singular of rājan

rājan - king, ruler

Note: A form of addressing Dhritarashtra.

महान् (mahān) - great, mighty, large

(adjective)

Nominative, masculine, singular of mahat

mahat - great, mighty, large

Note: Qualifies saṅgrāmaḥ.

आसीत् (āsīt) - occurred, took place (was, existed)

(verb)

3rd person , singular, active, past imperfect (laṅ) of √as

Imperfect tense (laṅ) third person singular of √as

Root: as (class 2)

Note: Denotes existence or occurrence.

सङ्ग्रामः (saṅgrāmaḥ) - battle, war, conflict

(noun)

Nominative, masculine, singular of saṅgrāma

saṅgrāma - battle, combat, war

From sam- + √gram (to go, walk)

Prefix: sam

Root: gram (class 1)

Note: Subject of the sentence.

भूरिवर्धनः (bhūrivardhanaḥ) - immensely destructive (of life/forces) (greatly increasing, highly destructive, greatly growing)

(adjective)

Nominative, masculine, singular of bhūrivardhana

bhūrivardhana - greatly increasing, much augmented, highly destructive

Compound type : tatpuruṣa (bhūri+vardhana)

• bhūri – much, many, great
  adjective
• vardhana – increasing, causing to grow, strengthening, destructive (of the enemy)
  noun/adjective (masculine)
  agent noun/action noun from √vṛdh
  Root: vṛdh (class 1)

Note: Qualifies saṅgrāmaḥ.

रुद्रस्य (rudrasya) - of Rudra

(proper noun)

Genitive, masculine, singular of rudra

rudra - Rudra (a deity, fierce aspect of Shiva)

Note: Possessive of Rudra.

आक्रीडसङ्काशः (ākrīḍasaṅkāśaḥ) - like a destructive sport (resembling a sport/play, similar to a playground)

(adjective)

Nominative, masculine, singular of ākrīḍasaṅkāśa

ākrīḍasaṅkāśa - resembling a sport/play/playground

Compound type : tatpuruṣa (ākrīḍa+saṅkāśa)

• ākrīḍa – sport, play, playground
  noun (masculine)
  From ā-√krīḍ (to play)
  Prefix: ā
  Root: krīḍ (class 1)
• saṅkāśa – resembling, similar, like
  adjective (masculine)
  Prefix: sam
  Root: kāś (class 1)

Note: Qualifies saṃhāraḥ (or saṅgrāmaḥ by implication).

संहारः (saṁhāraḥ) - destruction, annihilation, withdrawal

(noun)

Nominative, masculine, singular of saṃhāra

saṁhāra - destruction, annihilation, collection

From sam-√hṛ (to take away, destroy)

Prefix: sam

Root: hṛ (class 1)

Note: In apposition to saṅgrāmaḥ.

सर्वदेहिनाम् (sarvadehinām) - of all embodied beings, of all living creatures

(noun)

Genitive, masculine, plural of sarvadehin

sarvadehin - all embodied beings, all living beings

Compound sarva (all) + dehin (embodied being)

Compound type : tatpuruṣa (sarva+dehin)

• sarva – all, every
  pronoun/adjective
• dehin – embodied, having a body, an embodied being
  noun (masculine)
  possessive adjective from deha

Note: Connected to saṃhāraḥ.