महाभारतः mahābhārataḥ - book-7, chapter-13, verse-12

नरनागाश्वसंभूतां शरवेगौघवाहिनीम् ।
शरीरदारुशृङ्गाटां भुजनागसमाकुलाम् ॥१२॥

12. naranāgāśvasaṁbhūtāṁ śaravegaughavāhinīm ,
śarīradāruśṛṅgāṭāṁ bhujanāgasamākulām.

12. naranāgāśvasaṃbhūtām śaravegoghvāhinīm
śarīradāruśṛṅgāṭām bhujanāgasamākulām

12. naranāgāśvasaṃbhūtām śaravegoghvāhinīm
śarīradāruśṛṅgāṭām bhujanāgasamākulām

12. It was generated from men, elephants, and horses, carrying a current like a flood of swift arrows. It had bodies (śarīra) as its wooden obstacles and was teeming with arms resembling snakes.

Words meanings summery:

• नरनागाश्वसंभूताम् (naranāgāśvasaṁbhūtām) - describing the battlefield river as originating from men, elephants, and horses (born from men, elephants, and horses)

• शरवेगोघ्वाहिनीम् (śaravegoghvāhinīm) - describing the battlefield river as having a current like a flood of speeding arrows (having a current of a multitude of arrow-speeds)

• शरीरदारुशृङ्गाटाम् (śarīradāruśṛṅgāṭām) - describing the battlefield river as having dead bodies resembling wooden traps or caltrops (having bodies as wooden traps/obstacles)

• भुजनागसमाकुलाम् (bhujanāgasamākulām) - describing the battlefield river as teeming with arms resembling snakes (crowded with arm-snakes)

Words meanings and morphology

नरनागाश्वसंभूताम् (naranāgāśvasaṁbhūtām) - describing the battlefield river as originating from men, elephants, and horses (born from men, elephants, and horses)

(adjective)

Accusative, feminine, singular of naranāgāśvasaṃbhūtā

naranāgāśvasaṁbhūtā - born from men, elephants, and horses

Compound type : tatpuruṣa (nara+nāga+aśva+saṃbhūta)

• nara – man, human being
  noun (masculine)
• nāga – elephant, snake; a type of mythical being
  noun (masculine)
• aśva – horse
  noun (masculine)
• saṃbhūta – born, produced, arisen from
  adjective (masculine)
  Past Passive Participle
  From prefix sam- and root √bhū (to be, become).
  Prefix: sam
  Root: bhū (class 1)

Note: Compound describing the battlefield river as having its source in men, elephants, and horses.

शरवेगोघ्वाहिनीम् (śaravegoghvāhinīm) - describing the battlefield river as having a current like a flood of speeding arrows (having a current of a multitude of arrow-speeds)

(adjective)

Accusative, feminine, singular of śaravegoghvāhinī

śaravegoghvāhinī - having a current of a multitude of arrow-speeds

Compound type : tatpuruṣa (śara+vega+ogha+vāhinī)

• śara – arrow
  noun (masculine)
• vega – speed, velocity, force, current
  noun (masculine)
  Root: vij (class 1)
• ogha – flood, torrent, multitude, abundance
  noun (masculine)
• vāhinī – stream, river; bearing, carrying
  noun (feminine)
  Feminine of vāhin, from root √vah (to carry, flow).
  Root: vah (class 1)

Note: Compound describing the battlefield river's current as a flood of arrows.

शरीरदारुशृङ्गाटाम् (śarīradāruśṛṅgāṭām) - describing the battlefield river as having dead bodies resembling wooden traps or caltrops (having bodies as wooden traps/obstacles)

(adjective)

Accusative, feminine, singular of śarīradāruśṛṅgāṭā

śarīradāruśṛṅgāṭā - having bodies as wooden traps/caltrops

Compound type : bahuvrīhi (śarīra+dāru+śṛṅgāṭa)

• śarīra – body, corporeal frame
  noun (neuter)
• dāru – wood, timber, a piece of wood
  noun (neuter)
• śṛṅgāṭa – water-chestnut; a three-pointed caltrop or trap
  noun (masculine)

Note: Compound describing the battlefield river as having bodies as wooden traps.

भुजनागसमाकुलाम् (bhujanāgasamākulām) - describing the battlefield river as teeming with arms resembling snakes (crowded with arm-snakes)

(adjective)

Accusative, feminine, singular of bhujanāgasamākulā

bhujanāgasamākulā - crowded with arm-snakes

Compound type : tatpuruṣa (bhuja+nāga+samākula)

• bhuja – arm, hand, shoulder
  noun (masculine)
• nāga – snake, elephant
  noun (masculine)
• samākula – crowded, confused, agitated, filled with
  adjective (masculine)
  From prefix sam-ā- and root √kul (to gather, heap).
  Prefixes: sam+ā
  Root: kul (class 1)

Note: Compound describing the battlefield river as crowded with arms resembling snakes.