योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-38, verse-22

वहद्रक्तनदीरंहःप्रोह्यमानहयद्विपम् ।
शरशक्त्यृष्टिमुसलगदाप्रासासिसंकुलम् ॥ २२ ॥

vahadraktanadīraṃhaḥprohyamānahayadvipam ,
śaraśaktyṛṣṭimusalagadāprāsāsisaṃkulam 22

22. vahat rakta nadī raṃhas prohyamāṇa haya dvipam
| śara śakti ṛṣṭi musala gadā prāsa asi saṅkulam

22. vahat rakta nadī raṃhas prohyamāṇa haya dvipam
śara śakti ṛṣṭi musala gadā prāsa asi saṅkulam

22. It had horses and elephants being swept away by the swift currents of rivers of flowing blood, and was crowded with arrows, spears, lances, clubs, maces, darts, and swords.

Words meanings summery:

• वहद्रक्तनदीरंहःप्रोह्यमाणहयद्विपम् (vahadraktanadīraṁhaḥprohyamāṇahayadvipam) - Describing the horrific scene of a battlefield inundated with blood, carrying away bodies like a powerful river. (Having horses and elephants being swept away by the current of rivers of flowing blood.)

• शरशक्त्यृष्टिमुस्लगदाप्रासासिसङ्कुलम् (śaraśaktyṛṣṭimuslagadāprāsāsisaṅkulam) - Describing the sheer density of various weapons scattered across the battlefield. (Filled with arrows, spears, lances, clubs, maces, darts, and swords.)

Words meanings and morphology

वहद्रक्तनदीरंहःप्रोह्यमाणहयद्विपम् (vahadraktanadīraṁhaḥprohyamāṇahayadvipam) - Describing the horrific scene of a battlefield inundated with blood, carrying away bodies like a powerful river. (Having horses and elephants being swept away by the current of rivers of flowing blood.)

(adjective)

neuter, singular of vahadraktanadīraṃhaḥprohyamāṇahayadvipa

vahadraktanadīraṁhaḥprohyamāṇahayadvipa - (compound adjective) having horses and elephants being swept away by the current of rivers of flowing blood

Compound type : bahuvrīhi (vahat+rakta+nadī+raṃhas+prohyamāṇa+haya+dvipa)

• vahat – flowing, carrying
  adjective
  Present Active Participle
  From root vah (to carry, to flow).
  Root: vah (class 1)
• rakta – blood, red
  noun (neuter)
  Past Passive Participle
  From rañj (to dye red). Used as a noun for 'blood'.
  Root: rañj (class 1)
• nadī – river
  noun (feminine)
  Root: nad (class 1)
• raṃhas – speed, velocity, current, force
  noun (neuter)
  From root raṃh (to go quickly).
  Root: raṃh (class 1)
• prohyamāṇa – being swept away, being carried away
  adjective
  Present Passive Participle
  From root vah (to carry) with pra (forth) and ud (up/away), in passive voice (pra + ud + vah > proh).
  Prefixes: pra+ud
  Root: vah (class 1)
• haya – horse
  noun (masculine)
  From root hi (to go).
  Root: hi (class 5)
• dvipa – elephant (two-drinker, referring to its trunk)
  noun (masculine)
  dvi (two) + pa (drinker, from pā to drink).
  Root: pā (class 1)

Note: Modifies an implied neuter noun like 'yuddhabhūmim' (battlefield) in the accusative case.

शरशक्त्यृष्टिमुस्लगदाप्रासासिसङ्कुलम् (śaraśaktyṛṣṭimuslagadāprāsāsisaṅkulam) - Describing the sheer density of various weapons scattered across the battlefield. (Filled with arrows, spears, lances, clubs, maces, darts, and swords.)

(adjective)

neuter, singular of śaraśaktyṛṣṭimuslagadāprāsāsisaṅkula

śaraśaktyṛṣṭimuslagadāprāsāsisaṅkula - (compound adjective) crowded/filled with arrows, spears, lances, clubs, maces, darts, and swords

Compound type : tatpuruṣa (śara+śakti+ṛṣṭi+musala+gadā+prāsa+asi+saṅkula)

• śara – arrow
  noun (masculine)
  From root śṝ (to injure).
  Root: śṝ (class 9)
• śakti – spear, javelin, power (śakti)
  noun (feminine)
  From root śak (to be able).
  Root: śak (class 5)
• ṛṣṭi – lance, spear, point
  noun (feminine)
  From root ṛṣ (to go, move quickly).
  Root: ṛṣ (class 1)
• musala – club, pestle, mace
  noun (masculine/neuter)
  Root: muṣ (class 9)
• gadā – mace, club
  noun (feminine)
  From root gad (to speak, to strike).
  Root: gad (class 1)
• prāsa – dart, javelin, spear
  noun (masculine)
  From root as (to throw) with pra.
  Prefix: pra
  Root: as (class 4)
• asi – sword
  noun (masculine)
  From root as (to throw, to move).
  Root: as (class 4)
• saṅkula – crowded, filled with, confused, chaotic
  adjective
  From root kul (to collect) with sam.
  Prefix: sam
  Root: kul (class 1)

Note: Modifies an implied neuter noun like 'yuddhabhūmim' (battlefield) in the accusative case.