योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-26, verse-25

मन्दरोद्धतदुग्धाब्धिसंक्षोभसदृशाङ्गकः ।
रतिश्रुद्धुंघुमास्फोटघटितद्वीपजन्तुभूः ॥ २५ ॥

mandaroddhatadugdhābdhisaṃkṣobhasadṛśāṅgakaḥ ,
ratiśruddhuṃghumāsphoṭaghaṭitadvīpajantubhūḥ 25

25. mandaroddhatadugdhābdisaṃkṣobhasadṛśāṅgakaḥ
ratiśruddhuṃghumāsphoṭaghaṭitadvīpajantubhūḥ

25. mandaroddhatadugdhābdisaṃkṣobhasadṛśāṅgakaḥ
ratiśruddhuṃghumāsphoṭaghaṭitadvīpajantubhūḥ

25. He whose form was like the agitation of the milk ocean stirred by Mount Mandara, and whose rumbling roar, renowned for its speed, caused the land of island creatures to be shaken.

Words meanings summery:

• मन्दरोद्धतदुग्धाब्दिसंक्षोभसदृशाङ्गकः (mandaroddhatadugdhābdisaṁkṣobhasadṛśāṅgakaḥ) - Describing a powerful entity, likely a demon or formidable warrior, in a battle context. (One whose body/form is like the agitation of the milk ocean stirred by Mount Mandara.)

• रतिश्रुद्धुंघुमास्फोटघटितद्वीपजन्तुभूः (ratiśruddhuṁghumāsphoṭaghaṭitadvīpajantubhūḥ) - Describes the powerful, impactful roar of a formidable entity in battle. (One whose rumbling roar, renowned for its speed, caused the land of island creatures to be shaken.)

Words meanings and morphology

मन्दरोद्धतदुग्धाब्दिसंक्षोभसदृशाङ्गकः (mandaroddhatadugdhābdisaṁkṣobhasadṛśāṅgakaḥ) - Describing a powerful entity, likely a demon or formidable warrior, in a battle context. (One whose body/form is like the agitation of the milk ocean stirred by Mount Mandara.)

(adjective)

Nominative, masculine, singular of mandaroddhatadugdhābdisaṃkṣobhasadṛśāṅgaka

mandaroddhatadugdhābdisaṁkṣobhasadṛśāṅgaka - Having a body similar to the agitation of the milk ocean churned by Mandara.

Bahuvrihi compound.

Compound type : Bahuvrīhi (mandara+uddhat+dugdhābdhi+saṃkṣobha+sadṛśa+aṅgaka)

• mandara – Mount Mandara (mythological mountain used in the Samudra manthan).
  proper noun (masculine)
• uddhat – agitated, turbulent, raised, arrogant.
  adjective
  Past Passive Participle
  Derived from ud + √han (to strike, disturb), or ud + √dhā (to place, raise). Here, "agitated" is more suitable.
  Prefix: ud
  Root: √han (class 2)
• dugdhābdhi – milk ocean (mythological ocean of milk).
  noun (masculine)
  Tatpurusha compound: dugdha (milk) + abdhi (ocean).
• saṃkṣobha – great agitation, commotion, disturbance.
  noun (masculine)
  Derived from sam + kṣubh (to agitate).
  Prefix: sam
  Root: √kṣubh (class 1)
• sadṛśa – similar, like, resembling.
  adjective
  Prefix: sa
  Root: √dṛś (class 1)
• aṅgaka – body, limb, form, minor part.
  noun (neuter)
  Diminutive of aṅga (body part).

Note: Describes the physical appearance or impact of the subject.

रतिश्रुद्धुंघुमास्फोटघटितद्वीपजन्तुभूः (ratiśruddhuṁghumāsphoṭaghaṭitadvīpajantubhūḥ) - Describes the powerful, impactful roar of a formidable entity in battle. (One whose rumbling roar, renowned for its speed, caused the land of island creatures to be shaken.)

(adjective)

Nominative, masculine, singular of ratiśruddhuṃghumāsphoṭaghaṭitadvīpajantubhū

ratiśruddhuṁghumāsphoṭaghaṭitadvīpajantubhū - Having a rumbling roar renowned for its speed that causes the land of island creatures to be affected.

Bahuvrihi compound.

Compound type : Bahuvrīhi (ratiśrut+ḍhuṃḍhumā+āsphoṭa+ghaṭita+dvīpa+jantu+bhū)

• ratiśrut – renowned for speed/quickness, famous for pleasure.
  adjective
  Compound rati (speed) + śrut (heard, famous).
• ḍhuṃḍhumā – a rumbling, roaring sound (onomatopoeic).
  noun (feminine)
  Onomatopoeic word.
• āsphoṭa – roar, explosion, cracking sound.
  noun (masculine)
  Derived from ā + √sphuṭ (to burst, crack).
  Prefix: ā
  Root: √sphuṭ (class 1)
• ghaṭita – caused, produced, effected, formed, made.
  adjective
  Past Passive Participle
  Derived from √ghaṭ (to happen, to unite, to strive).
  Root: √ghaṭ (class 1)
• dvīpa – island, continent, region.
  noun (masculine)
• jantu – creature, living being, animal.
  noun (masculine)
• bhū – earth, land, ground.
  noun (feminine)
  Root: √bhū (class 1)

Note: Continues the description of the powerful subject.