योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-31, verse-13

अशङ्कितागते तत्ते देव्यौ ददृशतुर्नभः ।
नभश्चरगणाक्रान्तमम्बुदैरिव मालितम् ॥ १३ ॥

aśaṅkitāgate tatte devyau dadṛśaturnabhaḥ ,
nabhaścaragaṇākrāntamambudairiva mālitam 13

13. aśaṅkitāgate tat te devyau dadṛśatuḥ nabhaḥ
nabhaścaragaṇākrāntam ambudaiḥ iva mālitam

13. te devyau aśaṅkitāgate tat nabhaḥ dadṛśatuḥ
nabhaścaragaṇākrāntam ambudaiḥ iva mālitam

13. At its unexpected arrival, those two goddesses saw that sky, which was overrun by hosts of sky-dwellers (nabhaścaragaṇa) and, as it were, adorned with clouds.

Words meanings summery:

• अशङ्कितागते (aśaṅkitāgate) - when it (the sky) appeared unexpectedly (at the unexpected arrival; pertaining to the unexpectedly arrived)

• तत् (tat) - that (sky) (that)

• ते (te) - those two (goddesses) (those two)

• देव्यौ (devyau) - two goddesses

• ददृशतुः (dadṛśatuḥ) - the two goddesses saw (they two saw)

• नभः (nabhaḥ) - sky, atmosphere, firmament

• नभश्चरगणाक्रान्तम् (nabhaścaragaṇākrāntam) - the sky overrun by hosts of sky-dwellers (overrun by hosts of sky-dwellers (nabhaścaragaṇa))

• अम्बुदैः (ambudaiḥ) - by clouds

• इव (iva) - like, as if, as it were

• मालितम् (mālitam) - adorned (with clouds) (adorned, garlanded)

Words meanings and morphology

अशङ्कितागते (aśaṅkitāgate) - when it (the sky) appeared unexpectedly (at the unexpected arrival; pertaining to the unexpectedly arrived)

(adjective)

Locative, neuter, singular of aśaṅkitāgata

aśaṅkitāgata - unexpectedly arrived

compound of `aśaṅkita` (PP from `a-śaṅk`) and `āgata` (PP from `ā-gam`)

Compound type : karmadhāraya (aśaṅkita+āgata)

• aśaṅkita – unfeared, unsuspicious, unexpected
  adjective (masculine)
  Past Passive Participle
  from `śaṅk` (to fear, suspect) with negative prefix `a-`
  Root: śaṅk (class 1)
• āgata – arrived, come
  adjective (masculine)
  Past Passive Participle
  from `gam` (to go) with prefix `ā-`
  Prefix: ā
  Root: gam (class 1)

Note: Used adverbially to indicate time.

तत् (tat) - that (sky) (that)

(pronoun)

Accusative, neuter, singular of tad

tad - that, he, she, it

Note: Refers to `nabhaḥ`.

ते (te) - those two (goddesses) (those two)

(pronoun)

Nominative, feminine, dual of tad

tad - that, he, she, it

Note: Refers to `devyau`.

देव्यौ (devyau) - two goddesses

(noun)

Nominative, feminine, dual of devī

devī - goddess, divine female

Root: div

ददृशतुः (dadṛśatuḥ) - the two goddesses saw (they two saw)

(verb)

3rd person , dual, active, perfect (lit) of dṛś

Perfect tense, parasmaipada

Reduplicated past tense (Perfect) form.

Root: dṛś (class 1)

नभः (nabhaḥ) - sky, atmosphere, firmament

(noun)

Accusative, neuter, singular of nabhas

nabhas - sky, atmosphere, ether, cloud

नभश्चरगणाक्रान्तम् (nabhaścaragaṇākrāntam) - the sky overrun by hosts of sky-dwellers (overrun by hosts of sky-dwellers (nabhaścaragaṇa))

(adjective)

Accusative, neuter, singular of nabhaścaragaṇākrānta

nabhaścaragaṇākrānta - overrun by hosts of sky-dwellers

compound of `nabhascara` (sky-dweller), `gaṇa` (host), and `ākrānta` (overrun)

Compound type : tatpuruṣa (nabhascara+gaṇa+ākrānta)

• nabhascara – sky-dweller, aerial being
  noun (masculine)
  compound of `nabhas` (sky) + `cara` (moving)
  Root: car (class 1)
• gaṇa – host, multitude, group, assembly
  noun (masculine)
  Root: gaṇ (class 10)
• ākrānta – overrun, occupied, overcome, filled
  adjective (masculine)
  Past Passive Participle
  from `kram` (to step, go) with prefix `ā-`
  Prefix: ā
  Root: kram (class 1)

Note: Modifies `nabhaḥ`.

अम्बुदैः (ambudaiḥ) - by clouds

(noun)

Instrumental, masculine, plural of ambuda

ambuda - cloud (giver of water)

compound of `ambas` (water) + `da` (giver, from `dā` to give)

इव (iva) - like, as if, as it were

(indeclinable)

मालितम् (mālitam) - adorned (with clouds) (adorned, garlanded)

(adjective)

Accusative, neuter, singular of mālita

mālita - adorned, garlanded, decorated

Past Passive Participle

from `mālā` (garland) or causative of `māl` (to adorn)

Root: māl (class 10)

Note: Modifies `nabhaḥ`.