योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-25, verse-9

शिलाशकलसंभूतपद्माद्यैरमराचलः ।
अनन्तविभवारम्भपरिपूरितदानवः ॥ ९ ॥

śilāśakalasaṃbhūtapadmādyairamarācalaḥ ,
anantavibhavārambhaparipūritadānavaḥ 9

9. śilāśakalasaṃbhūtapadmādyaiḥ amarācalaḥ
anantavibhavārambhaparipūritadānavaḥ

9. śilāśakalasaṃbhūtapadmādyaiḥ amarācalaḥ
anantavibhavārambhaparipūritadānavaḥ

9. A mountain of the immortals, [adorned] with lotuses and the like that have sprung from fragments of stone; whose demons are thoroughly satisfied by the inception of endless prosperity.

Words meanings summery:

• शिलाशकलसंभूतपद्माद्यैः (śilāśakalasaṁbhūtapadmādyaiḥ) - By lotuses and the like, sprung from fragments of stone.

• अमराचलः (amarācalaḥ) - mountain of the immortals, divine mountain

• अनन्तविभवारम्भपरिपूरितदानवः (anantavibhavārambhaparipūritadānavaḥ) - One whose demons are thoroughly satisfied by the inception of infinite prosperity.

Words meanings and morphology

शिलाशकलसंभूतपद्माद्यैः (śilāśakalasaṁbhūtapadmādyaiḥ) - By lotuses and the like, sprung from fragments of stone.

(adjective)

Instrumental, plural of śilāśakalasaṃbhūtapadmādi

śilāśakalasaṁbhūtapadmādi - Lotuses and similar flowers sprung from pieces of stone.

Compound type : bahuvrihi (śilā+śakala+saṃbhūta+padma+ādi)

• śilā – rock, stone
  noun (feminine)
• śakala – piece, fragment
  noun (neuter)
• saṃbhūta – sprung from, produced, arisen
  adjective
  Past Passive Participle
  Derived from root bhū (to be, become) with prefix sam.
  Prefix: sam
  Root: bhū (class 1)
• padma – lotus
  noun (neuter)
• ādi – beginning, and so on, et cetera
  indeclinable
  Prefix: ā
  Root: ad (class 2)

Note: Describes the method or means by which the mountain is adorned.

अमराचलः (amarācalaḥ) - mountain of the immortals, divine mountain

(noun)

Nominative, masculine, singular of amarācala

amarācala - divine mountain, mountain of the gods

Compound type : tatpurusha (amara+acala)

• amara – immortal, god, deity
  noun (masculine)
  a (negation) + mara (mortal)
  Prefix: a
  Root: mṛ (class 1)
• acala – mountain, immovable
  noun (masculine)
  a (negation) + cala (moving)
  Prefix: a
  Root: cal (class 1)

Note: Main noun being described in this part of the verse.

अनन्तविभवारम्भपरिपूरितदानवः (anantavibhavārambhaparipūritadānavaḥ) - One whose demons are thoroughly satisfied by the inception of infinite prosperity.

(adjective)

Nominative, masculine, singular of anantavibhavārambhaparipūritadānava

anantavibhavārambhaparipūritadānava - A place whose demons are completely satisfied by the beginning of infinite power/wealth.

Compound type : bahuvrihi (ananta+vibhava+ārambha+paripūrita+dānava)

• ananta – endless, infinite, boundless
  adjective
  an (negation) + anta (end)
  Prefix: an
• vibhava – power, prosperity, grandeur, wealth
  noun (masculine)
  Derived from root bhū (to be) with prefix vi.
  Prefix: vi
  Root: bhū (class 1)
• ārambha – beginning, commencement, undertaking
  noun (masculine)
  Derived from root rabh (to begin) with prefix ā.
  Prefix: ā
  Root: rabh (class 1)
• paripūrita – completely filled, thoroughly satisfied
  adjective
  Past Passive Participle
  Derived from root pṛ (to fill) with prefixes pari.
  Prefix: pari
  Root: pṛ (class 9)
• dānava – demon, son of Danu (a class of asuras)
  noun (masculine)

Note: Another descriptive Bahuvrihi compound.