योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-24, verse-10

अदृष्टपूर्वमन्योन्यं सर्वसंकटकोटरम् ।
अपूर्यमाणमाशून्यं जगत्कोटिशतैरपि ॥ १० ॥

adṛṣṭapūrvamanyonyaṃ sarvasaṃkaṭakoṭaram ,
apūryamāṇamāśūnyaṃ jagatkoṭiśatairapi 10

10. adṛṣṭapūrvam anyonyam sarvasaṅkaṭakoṭaram
apūryamāṇam āśūnyam jagatkoṭiśataiḥ api

10. adṛṣṭapūrvam anyonyam sarvasaṅkaṭakoṭaram
apūryamāṇam āśūnyam jagatkoṭiśataiḥ api

10. (They saw a space that was) never before seen by anyone, a hollow (koṭara) of all distress, which remained utterly empty and could not be filled even by hundreds of millions of worlds.

Words meanings summery:

• अदृष्टपूर्वम् (adṛṣṭapūrvam) - never seen before by any other being (referring to the unique nature of the cosmic space) (never seen before; unprecedented)

• अन्योन्यम् (anyonyam) - by any other (being or creation); in such a way that it is unprecedented to others (mutually, reciprocally; by any other)

• सर्वसङ्कटकोटरम् (sarvasaṅkaṭakoṭaram) - a space that is the very repository or essence of all difficulties and dangers (a hollow/cavity of all distress; the core of all difficulties)

• अपूर्यमाणम् (apūryamāṇam) - not being filled; unfillable

• आशून्यम् (āśūnyam) - completely empty; utterly void

• जगत्कोटिशतैः (jagatkoṭiśataiḥ) - by hundreds of millions of worlds; by hundreds of crores of universes

• अपि (api) - emphasizing that even by such a vast number, it remained unfilled (even, also, too)

Words meanings and morphology

अदृष्टपूर्वम् (adṛṣṭapūrvam) - never seen before by any other being (referring to the unique nature of the cosmic space) (never seen before; unprecedented)

(adjective)

Accusative, neuter, singular of adṛṣṭapūrva

adṛṣṭapūrva - unseen before, unprecedented

Compound type : tatpuruṣa (adṛṣṭa+pūrva)

• adṛṣṭa – unseen, invisible
  adjective (masculine)
  Past Passive Participle
  Past Passive Participle of root dṛś with negative prefix a-
  Prefix: a
  Root: dṛś (class 1)
• pūrva – before, former, prior
  adjective (masculine)

Note: Agrees with 'vyoma' from the previous verse.

अन्योन्यम् (anyonyam) - by any other (being or creation); in such a way that it is unprecedented to others (mutually, reciprocally; by any other)

(indeclinable)

सर्वसङ्कटकोटरम् (sarvasaṅkaṭakoṭaram) - a space that is the very repository or essence of all difficulties and dangers (a hollow/cavity of all distress; the core of all difficulties)

(noun)

Accusative, neuter, singular of sarvasaṅkaṭakoṭara

sarvasaṅkaṭakoṭara - hollow of all distress

Compound type : tatpuruṣa (sarva+saṅkaṭa+koṭara)

• sarva – all, every, whole
  pronoun (masculine)
• saṅkaṭa – distress, danger, difficulty, calamity
  noun (neuter)
• koṭara – hollow, cavity, hole; interior of a tree
  noun (neuter)

Note: Agrees with 'vyoma' from the previous verse.

अपूर्यमाणम् (apūryamāṇam) - not being filled; unfillable

(adjective)

Accusative, neuter, singular of apūryamāṇa

apūryamāṇa - not being filled

Present Passive Participle

Present Passive Participle of root pṛ (to fill) with negative prefix a-

Prefix: a

Root: pṛ (class 9)

Note: Agrees with 'vyoma' from the previous verse.

आशून्यम् (āśūnyam) - completely empty; utterly void

(adjective)

Accusative, neuter, singular of āśūnya

āśūnya - completely empty, quite vacant

Prefix: ā

Root: śūñ (class 1)

Note: Agrees with 'vyoma' from the previous verse.

जगत्कोटिशतैः (jagatkoṭiśataiḥ) - by hundreds of millions of worlds; by hundreds of crores of universes

(noun)

Instrumental, neuter, plural of jagatkoṭiśata

jagatkoṭiśata - hundreds of millions of worlds

Compound type : tatpuruṣa (jagat+koṭiśata)

• jagat – world, universe, all that moves
  noun (neuter)
  Root: gam (class 1)
• koṭiśata – hundreds of millions/crores
  noun (neuter)

अपि (api) - emphasizing that even by such a vast number, it remained unfilled (even, also, too)

(indeclinable)