योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-56, verse-18

गायन्त्यनिलभांकारैर्नृत्यन्ति लतिकाः करैः ।
पुष्पैर्हसन्त्यगेन्द्राणां गुहा गहनकोटराः ॥ १८ ॥

gāyantyanilabhāṃkārairnṛtyanti latikāḥ karaiḥ ,
puṣpairhasantyagendrāṇāṃ guhā gahanakoṭarāḥ 18

18. gāyanti anilabhāṃkāraiḥ nṛtyanti latikāḥ karaiḥ
puṣpaiḥ hasanti agendrāṇām guhā gahanakoṭarāḥ

18. latikāḥ anilabhāṃkāraiḥ gāyanti karaiḥ nṛtyanti
agendrāṇām guhā gahanakoṭarāḥ puṣpaiḥ hasanti

18. The creepers (latikā) sing with the humming sounds of the wind and dance with their tendril-like "hands". The caves and deep hollows of the great mountains "smile" with their flowers.

Words meanings summery:

• गायन्ति (gāyanti) - they sing

• अनिलभांकारैः (anilabhāṁkāraiḥ) - by the humming sounds of the wind

• नृत्यन्ति (nṛtyanti) - they dance

• लतिकाः (latikāḥ) - creepers, vines, delicate plants

• करैः (karaiḥ) - by tendrils or branches (of creepers) (by hands, by rays, by trunks)

• पुष्पैः (puṣpaiḥ) - with flowers

• हसन्ति (hasanti) - they smile, they laugh

• अगेन्द्राणाम् (agendrāṇām) - of the great mountains, of the chiefs of mountains

• गुहा (guhā) - caves, grottoes

• गहनकोटराः (gahanakoṭarāḥ) - deep hollows, dense cavities

Words meanings and morphology

गायन्ति (gāyanti) - they sing

(verb)

3rd person , plural, active, present indicative (laṭ) of gāy

Root: gai (class 1)

अनिलभांकारैः (anilabhāṁkāraiḥ) - by the humming sounds of the wind

(noun)

Instrumental, masculine, plural of anilabhāṃkāra

anilabhāṁkāra - humming/buzzing sound of the wind

Compound type : tatpuruṣa (anila+bhāṃkāra)

• anila – wind, air
  noun (masculine)
• bhāṃkāra – humming, buzzing sound
  noun (masculine)

नृत्यन्ति (nṛtyanti) - they dance

(verb)

3rd person , plural, active, present indicative (laṭ) of nṛt

Root: nṛt (class 4)

लतिकाः (latikāḥ) - creepers, vines, delicate plants

(noun)

Nominative, feminine, plural of latikā

latikā - creeper, vine, delicate plant

करैः (karaiḥ) - by tendrils or branches (of creepers) (by hands, by rays, by trunks)

(noun)

Instrumental, masculine, plural of kara

kara - hand, ray, trunk (of an elephant), tax

पुष्पैः (puṣpaiḥ) - with flowers

(noun)

Instrumental, neuter, plural of puṣpa

puṣpa - flower, blossom

हसन्ति (hasanti) - they smile, they laugh

(verb)

3rd person , plural, active, present indicative (laṭ) of has

Root: has (class 1)

अगेन्द्राणाम् (agendrāṇām) - of the great mountains, of the chiefs of mountains

(noun)

Genitive, masculine, plural of agendra

agendra - chief of mountains, great mountain

Compound type : tatpuruṣa (aga+indra)

• aga – mountain (literally 'that which does not move')
  noun (masculine)
• indra – chief, lord, Indra
  noun (masculine)

गुहा (guhā) - caves, grottoes

(noun)

Nominative, feminine, plural of guhā

guhā - cave, grotto, hiding place

गहनकोटराः (gahanakoṭarāḥ) - deep hollows, dense cavities

(noun)

Nominative, masculine, plural of gahanakoṭara

gahanakoṭara - deep hollow/cavity

Compound type : karmadhāraya (gahana+koṭara)

• gahana – deep, dense, impenetrable, thicket
  adjective
• koṭara – hollow (of a tree), cavity, hole
  noun (neuter)