योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-25, verse-18

ततोऽपि द्विगुणाकारं धारयन्त्या च वेष्टिताम् ।
दध्यब्धिलेखया नित्यसंतर्पितसुरौघया ॥ १८ ॥

tato'pi dviguṇākāraṃ dhārayantyā ca veṣṭitām ,
dadhyabdhilekhayā nityasaṃtarpitasuraughayā 18

18. tataḥ api dviguṇākāram dhārayantyā ca veṣṭitām
dadhyabdhilekhayā nityasantarpitasuraughayā

18. tataḥ api veṣṭitām ca dviguṇākāram dhārayantyā
nityasantarpitasuraughayā dadhyabdhilekhayā

18. Even greater than that, the previous (implied continent) being encircled, by the circular expanse of an ocean (abdhi) of curds, which constantly satisfies the host of gods (sura), and itself assumes a form twice its size.

Words meanings summery:

• ततः (tataḥ) - from that (the previous continent/entity) (from that, thence, even so)

• अपि (api) - even (emphasizing comparison to the previous entity) (also, even, too)

• द्विगुणाकारम् (dviguṇākāram) - a form twice the size (twice the size/form, having a double form)

• धारयन्त्या (dhārayantyā) - by that (the outline) which bears/assumes (by bearing, by holding, by maintaining)

• च (ca) - and (and, also, moreover)

• वेष्टिताम् (veṣṭitām) - the previous continent/entity being encircled (encircled, surrounded, enveloped, wrapped)

• दध्यब्धिलेखया (dadhyabdhilekhayā) - by the circular expanse of an ocean of curds (by the outline/region of an ocean of curds)

• नित्यसन्तर्पितसुरौघया (nityasantarpitasuraughayā) - by that (the outline) which constantly satisfies the host of gods (by that which constantly satisfies the host of gods)

Words meanings and morphology

ततः (tataḥ) - from that (the previous continent/entity) (from that, thence, even so)

(indeclinable)

अपि (api) - even (emphasizing comparison to the previous entity) (also, even, too)

(indeclinable)

द्विगुणाकारम् (dviguṇākāram) - a form twice the size (twice the size/form, having a double form)

(adjective)

Accusative, masculine, singular of dviguṇākāra

dviguṇākāra - twice the size/form, having a double form

Compound type : tatpuruṣa (dviguṇa+ākāra)

• dviguṇa – twice, double
  adjective (masculine)
• ākāra – form, shape, size, appearance
  noun (masculine)

Note: Object of 'dhārayantyā', referring to the form the ocean's outline assumes.

धारयन्त्या (dhārayantyā) - by that (the outline) which bears/assumes (by bearing, by holding, by maintaining)

(verbal derivative)

च (ca) - and (and, also, moreover)

(indeclinable)

वेष्टिताम् (veṣṭitām) - the previous continent/entity being encircled (encircled, surrounded, enveloped, wrapped)

(adjective)

Accusative, feminine, singular of veṣṭita

veṣṭita - encircled, surrounded, enveloped, wrapped

past passive participle

Derived from root √veṣṭ (to encircle, wrap).

Root: veṣṭ

Note: Modifies an implied previous feminine entity (e.g., 'pūrvām dvīpam' or 'bhūmim').

दध्यब्धिलेखया (dadhyabdhilekhayā) - by the circular expanse of an ocean of curds (by the outline/region of an ocean of curds)

(noun)

Instrumental, feminine, singular of dadhyabdhilekhā

dadhyabdhilekhā - outline/region of an ocean of curds

Compound noun.

Compound type : tatpuruṣa (dadhi+abdhi+lekhā)

• dadhi – curd, yogurt
  noun (neuter)
• abdhi – ocean, sea (literally 'holder of water')
  noun (masculine)
• lekhā – line, outline, boundary, region, tract
  noun (feminine)

Note: The primary instrumental agent/means in the sentence.

नित्यसन्तर्पितसुरौघया (nityasantarpitasuraughayā) - by that (the outline) which constantly satisfies the host of gods (by that which constantly satisfies the host of gods)

(adjective)

Instrumental, feminine, singular of nityasantarpitasuraughā

nityasantarpitasuraughā - that which constantly satisfies the host of gods

compound adjective with a past passive participle

Compound adjective formed from nitya + santarpita + sura + ogha.

Compound type : tatpuruṣa (nitya+santarpita+sura+ogha)

• nitya – constant, eternal, always
  adjective (masculine)
• santarpita – well-satisfied, gratified
  verbal derivative (masculine)
  past passive participle
  From root √tṛp (to satisfy) with prefix sam-.
  Prefix: sam
  Root: tṛp
• sura – god, deity
  noun (masculine)
• ogha – flood, torrent, multitude, host
  noun (masculine)

Note: Adjective modifying 'dadhyabdhilekhayā'.