महाभारतः mahābhārataḥ - book-12, chapter-99, verse-31

असिचर्मप्लवा सिन्धुः केशशैवलशाद्वला ।
अश्वनागरथैश्चैव संभिन्नैः कृतसंक्रमा ॥३१॥

31. asicarmaplavā sindhuḥ keśaśaivalaśādvalā ,
aśvanāgarathaiścaiva saṁbhinnaiḥ kṛtasaṁkramā.

31. asi-carma-plavā sindhuḥ keśa-śaivala-śādvalā
aśva-nāga-rathaiḥ ca eva saṃbhinnaiḥ kṛta-saṃkramā

31. sindhuḥ asi-carma-plavā (asti),
keśa-śaivala-śādvalā (ca asti),
ca eva saṃbhinnaiḥ aśva-nāga-rathaiḥ kṛta-saṃkramā (asti)

31. That river (of battle), whose swords and shields serve as its floats, and whose hair is its moss and green grass; a crossing has been created by the shattered horses, elephants, and chariots.

Words meanings summery:

• असि-चर्म-प्लवा (asi-carma-plavā) - swords and shields serving as floats in the battle-river (whose swords and shields are floats)

• सिन्धुः (sindhuḥ) - the river of battle (river, ocean, stream)

• केश-शैवल-शाद्वला (keśa-śaivala-śādvalā) - hair acting as moss and grass in the battle-river (whose hair is moss and green grass)

• अश्व-नाग-रथैः (aśva-nāga-rathaiḥ) - by the horses, elephants, and chariots (of the army) (by horses, elephants, and chariots)

• च (ca) - and, also

• एव (eva) - indeed, just, only, also

• संभिन्नैः (saṁbhinnaiḥ) - by the shattered (horses, elephants, and chariots) (by those shattered, broken, torn apart)

• कृत-संक्रमा (kṛta-saṁkramā) - a crossing (across the river) has been formed (a passage has been made, a crossing created)

Words meanings and morphology

असि-चर्म-प्लवा (asi-carma-plavā) - swords and shields serving as floats in the battle-river (whose swords and shields are floats)

(noun)

Nominative, feminine, singular of asicarma-plavā

asicarma-plavā - rafts or floats of swords and shields

Compound type : bahuvrīhi (asi+carman+plava)

• asi – sword, scimitar
  noun (masculine)
• carman – skin, hide, shield
  noun (neuter)
• plava – float, raft, boat
  noun (masculine)
  Root: plu (class 1)

सिन्धुः (sindhuḥ) - the river of battle (river, ocean, stream)

(noun)

Nominative, feminine, singular of sindhu

sindhu - river, stream, ocean, the Indus river

Root: syand (class 1)

केश-शैवल-शाद्वला (keśa-śaivala-śādvalā) - hair acting as moss and grass in the battle-river (whose hair is moss and green grass)

(noun)

Nominative, feminine, singular of keśaśaivalaśādvalā

keśaśaivalaśādvalā - having hair as moss and green grass

Compound type : bahuvrīhi (keśa+śaivala+śādvala)

• keśa – hair
  noun (masculine)
• śaivala – moss, aquatic plant, algae
  noun (neuter)
• śādvala – green grass, pasture, meadow
  noun (neuter)

अश्व-नाग-रथैः (aśva-nāga-rathaiḥ) - by the horses, elephants, and chariots (of the army) (by horses, elephants, and chariots)

(noun)

Instrumental, masculine, plural of aśvanāgaratha

aśvanāgaratha - horses, elephants, and chariots

Compound type : dvandva (aśva+nāga+ratha)

• aśva – horse
  noun (masculine)
• nāga – elephant, serpent
  noun (masculine)
• ratha – chariot
  noun (masculine)

च (ca) - and, also

(indeclinable)

एव (eva) - indeed, just, only, also

(indeclinable)

संभिन्नैः (saṁbhinnaiḥ) - by the shattered (horses, elephants, and chariots) (by those shattered, broken, torn apart)

(adjective)

Instrumental, masculine, plural of saṃbhinna

saṁbhinna - broken, shattered, pierced, split

Past Passive Participle

Derived from root bhid (to break, split) with prefix sam-.

Prefix: sam

Root: bhid (class 7)

कृत-संक्रमा (kṛta-saṁkramā) - a crossing (across the river) has been formed (a passage has been made, a crossing created)

(noun)

Nominative, feminine, singular of kṛtasaṃkramā

kṛtasaṁkramā - having a passage made, a crossing created

Compound type : bahuvrīhi (kṛta+saṃkrama)

• kṛta – done, made, performed
  adjective
  Past Passive Participle
  Derived from root kṛ (to do, make).
  Root: kṛ (class 8)
• saṃkrama – passage, crossing, transition
  noun (masculine)
  Prefix: sam
  Root: kram (class 1)

Note: Refers to the 'sindhuḥ' having a crossing.