योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-110, verse-13

सैन्यं ददृशतुस्तत्तौ वाजिवारणसंकुलम् ।
पताकापूरिताकाशं नीरन्ध्रीकृतकाननम् ॥ १३ ॥

sainyaṃ dadṛśatustattau vājivāraṇasaṃkulam ,
patākāpūritākāśaṃ nīrandhrīkṛtakānanam 13

13. sainyam dadṛśatuḥ tat tau vājivāraṇasaṅkulam
patākāpūritākāśam nīrandhrīkṛtakānanam

13. tau tat sainyam vājivāraṇasaṅkulam
patākāpūritākāśam nīrandhrīkṛtakānanam dadṛśatuḥ

13. The two of them (Chūḍālā and her husband) saw that army, crowded with horses and elephants, its banners filling the sky, and making the forests impassable.

Words meanings summery:

• सैन्यम् (sainyam) - army, host

• ददृशतुः (dadṛśatuḥ) - they two saw

• तत् (tat) - that

• तौ (tau) - those two (Chūḍālā and her husband) (those two)

• वाजिवारणसङ्कुलम् (vājivāraṇasaṅkulam) - crowded with horses and elephants

• पताकापूरिताकाशम् (patākāpūritākāśam) - filling the sky with banners

• नीरन्ध्रीकृतकाननम् (nīrandhrīkṛtakānanam) - making the forests dense/impenetrable

Words meanings and morphology

सैन्यम् (sainyam) - army, host

(noun)

Accusative, neuter, singular of sainya

sainya - an army, host, military force

ददृशतुः (dadṛśatuḥ) - they two saw

(verb)

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

Root: dṛś (class 1)

तत् (tat) - that

(pronoun)

Accusative, neuter, singular of tad

tad - that, this

तौ (tau) - those two (Chūḍālā and her husband) (those two)

(pronoun)

Nominative, masculine, dual of tad

tad - that, this

वाजिवारणसङ्कुलम् (vājivāraṇasaṅkulam) - crowded with horses and elephants

(adjective)

Accusative, neuter, singular of vājivāraṇasaṅkula

vājivāraṇasaṅkula - crowded or filled with horses and elephants

Compound type : tatpuruṣa (vājin+vāraṇa+saṅkula)

• vājin – horse, swift, winged
  noun (masculine)
• vāraṇa – elephant, defending, impeding
  noun (masculine)
• saṅkula – crowded, full of, confused, thick
  adjective (masculine)
  Prefix: sam

Note: Qualifies 'sainyam'

पताकापूरिताकाशम् (patākāpūritākāśam) - filling the sky with banners

(adjective)

Accusative, neuter, singular of patākāpūritākāśa

patākāpūritākāśa - one whose sky is filled with banners

Compound type : bahuvrīhi (patākā+pūrita+ākāśa)

• patākā – banner, flag, standard
  noun (feminine)
• pūrita – filled, full, completed
  adjective (masculine)
  Past Passive Participle
  Derived from root pūr (to fill) with suffix kta
  Root: pūr (class 10)
• ākāśa – sky, ether, space
  noun (masculine)

Note: Qualifies 'sainyam'

नीरन्ध्रीकृतकाननम् (nīrandhrīkṛtakānanam) - making the forests dense/impenetrable

(adjective)

Accusative, neuter, singular of nīrandhrīkṛtakānana

nīrandhrīkṛtakānana - one whose forests have been made dense/impenetrable

Compound type : bahuvrīhi (nīrandhrīkṛta+kānana)

• nīrandhrīkṛta – made dense, made impenetrable
  adjective (masculine)
  Past Passive Participle
  Derived from nīrandhra (without gaps) + kṛ (to make)
  Root: kṛ (class 8)
• kānana – forest, grove, wood
  noun (neuter)

Note: Qualifies 'sainyam'