योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-71, verse-31

चलच्चलचलद्वीरमकराघूर्णितान्तराः ।
उल्लसन्मकराक्रान्तद्रुमकाननितोदराः ॥ ३१ ॥

calaccalacaladvīramakarāghūrṇitāntarāḥ ,
ullasanmakarākrāntadrumakānanitodarāḥ 31

31. calaccalacaladvīramakarāghūrṇitāntarāḥ
ullasanmakarākrāntadrumakānanitodarāḥ

31. calaccalacaladvīramakarāghūrṇitāntarāḥ
ullasanmakarākrāntadrumakānanitodarāḥ

31. Their interiors are churned by mighty, restlessly moving sea-creatures. Their vast depths are like forests of trees overrun by leaping sea-monsters.

Words meanings summery:

• चलच्चलचलद्वीरमकराघूर्णितान्तराः (calaccalacaladvīramakarāghūrṇitāntarāḥ) - whose interiors are churned by mighty, restlessly moving sea-creatures (whose interiors are agitated/churned by intensely restless, mighty sea-creatures)

• उल्लसन्मकराक्रान्तद्रुमकाननितोदराः (ullasanmakarākrāntadrumakānanitodarāḥ) - whose vast depths are like forests of trees overrun by leaping sea-monsters (whose vast depths are like forests of trees overwhelmed by leaping sea-monsters)

Words meanings and morphology

चलच्चलचलद्वीरमकराघूर्णितान्तराः (calaccalacaladvīramakarāghūrṇitāntarāḥ) - whose interiors are churned by mighty, restlessly moving sea-creatures (whose interiors are agitated/churned by intensely restless, mighty sea-creatures)

(adjective)

Nominative, masculine, plural of calaccalacaladvīramakarāghūrṇitāntara

calaccalacaladvīramakarāghūrṇitāntara - having interiors agitated by intensely moving, mighty sea-monsters

Bahuvrīhi compound. `calaccalaccalat` is an intensive reduplication.

Compound type : bahuvrīhi (calaccalaccalat+vīra+makara+āghūrṇita+antara)

• calaccalaccalat – very restless, intensely moving, agitated
  adjective (masculine/feminine/neuter)
  Present Active Participle (intensive reduplication)
  Intensive reduplication of `calat` (moving), from root `cal`.
  Root: cal (class 1)
• vīra – heroic, mighty, valiant; a hero
  adjective (masculine)
• makara – sea-monster, crocodile, mythical aquatic creature
  noun (masculine)
• āghūrṇita – agitated, stirred, whirled, tossed about
  adjective (masculine/feminine/neuter)
  Past Passive Participle
  From `ā-ghūrṇ` (to whirl, agitate)
  Prefix: ā
  Root: ghūrṇ (class 10)
• antara – interior, inside, middle, interval
  noun (neuter)

Note: Refers to the implied subject

उल्लसन्मकराक्रान्तद्रुमकाननितोदराः (ullasanmakarākrāntadrumakānanitodarāḥ) - whose vast depths are like forests of trees overrun by leaping sea-monsters (whose vast depths are like forests of trees overwhelmed by leaping sea-monsters)

(adjective)

Nominative, masculine, plural of ullasanmakarākrāntadrumakānanitodara

ullasanmakarākrāntadrumakānanitodara - having interiors (bellies) like forests of trees, pervaded by leaping sea-monsters

Bahuvrīhi compound

Compound type : bahuvrīhi (ullasat+makara+ākrānta+drumakānana+ita+udara)

• ullasat – leaping, springing up, flashing, sparkling
  adjective (masculine/feminine/neuter)
  Present Active Participle
  From `ud-las` (to leap up, shine)
  Prefix: ud
  Root: las (class 1)
• makara – sea-monster, crocodile, mythical aquatic creature
  noun (masculine)
• ākrānta – overwhelmed, assailed, pervaded, attacked
  adjective (masculine/feminine/neuter)
  Past Passive Participle
  From `ā-kram` (to attack, pervade)
  Prefix: ā
  Root: kram (class 1)
• drumakānana – forest of trees, tree-grove
  noun (neuter)
  Compound: `druma` (tree) + `kānana` (forest)
• ita – gone, attained, reached; (often forms compounds meaning 'like' or 'full of')
  adjective (masculine/feminine/neuter)
  Past Passive Participle
  From root `i` (to go)
  Root: i (class 2)
• udara – belly, interior, inside, cavity
  noun (neuter)

Note: Refers to the implied subject