वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-7, chapter-23, verse-3

ततो रसातलं हृष्टः प्रविष्टः पयसो निधिम् ।
दैत्योरग गणाध्युष्टं वरुणेन सुरक्षितम् ॥३॥

3. tato rasātalaṃ hṛṣṭaḥ praviṣṭaḥ payaso nidhim ,
daityoraga gaṇādhyuṣṭaṃ varuṇena surakṣitam.

3. tataḥ rasātalam hṛṣṭaḥ praviṣṭaḥ payasaḥ nidhim
daityoragagaṇādhyuṣṭam varuṇena surakṣitam

3. Then, joyful, he (Rāvaṇa) entered Rasātala, the ocean-like abode inhabited by hosts of demons (daityas) and serpents (uragas), and well-protected by Varuṇa.

Words meanings summery:

• ततः (tataḥ) - then, thereafter, from there

• रसातलम् (rasātalam) - Rasātala (one of the seven lower worlds, often associated with water or oceans)

• हृष्टः (hṛṣṭaḥ) - Rāvaṇa, who was joyful (delighted, joyful, pleased)

• प्रविष्टः (praviṣṭaḥ) - Rāvaṇa, who entered (entered, having entered)

• पयसः (payasaḥ) - of water, of milk, of fluids

• निधिम् (nidhim) - ocean (referring to Rasātala as a watery abode) (treasure, storehouse, ocean)

• दैत्योरगगणाध्युष्टम् (daityoragagaṇādhyuṣṭam) - Rasātala, inhabited by mythological beings (inhabited by hosts of demons (daityas) and serpents (uragas))

• वरुणेन (varuṇena) - by Varuṇa (the god of the oceans and cosmic order)

• सुरक्षितम् (surakṣitam) - Rasātala, which was well-protected (well-protected, properly guarded)

Words meanings and morphology

ततः (tataḥ) - then, thereafter, from there

(indeclinable)

रसातलम् (rasātalam) - Rasātala (one of the seven lower worlds, often associated with water or oceans)

(noun)

Accusative, neuter, singular of rasātala

rasātala - Rasātala (one of the seven lower worlds, often associated with water or oceans), the lowest region

हृष्टः (hṛṣṭaḥ) - Rāvaṇa, who was joyful (delighted, joyful, pleased)

(adjective)

Nominative, masculine, singular of hṛṣṭa

hṛṣṭa - delighted, joyful, pleased

Past Passive Participle

Derived from the root √hṛṣ (to be excited, glad)

Root: hṛṣ (class 1)

प्रविष्टः (praviṣṭaḥ) - Rāvaṇa, who entered (entered, having entered)

(adjective)

Nominative, masculine, singular of praviṣṭa

praviṣṭa - entered, having entered, penetrated

Past Passive Participle

Derived from the root √viś (to enter) with prefix pra-

Prefix: pra

Root: viś (class 6)

पयसः (payasaḥ) - of water, of milk, of fluids

(noun)

Genitive, neuter, singular of payas

payas - water, milk, fluid, juice

निधिम् (nidhim) - ocean (referring to Rasātala as a watery abode) (treasure, storehouse, ocean)

(noun)

Accusative, masculine, singular of nidhi

nidhi - treasure, storehouse, receptacle, ocean

Root: dhā (class 3)

दैत्योरगगणाध्युष्टम् (daityoragagaṇādhyuṣṭam) - Rasātala, inhabited by mythological beings (inhabited by hosts of demons (daityas) and serpents (uragas))

(adjective)

Accusative, neuter, singular of daityoragagaṇādhyuṣṭa

daityoragagaṇādhyuṣṭa - inhabited by hosts of daityas (demons) and uragas (serpents)

Past Passive Participle (within compound)

Compound type : Tṛtīyā-tatpuruṣa (daityoragagaṇa+adhyuṣṭa)

• daityoragagaṇa – host of daityas and uragas
  noun (masculine)
• adhyuṣṭa – inhabited, occupied, filled with
  adjective (neuter)
  Past Passive Participle
  Derived from the root √vas (to dwell) with prefix adhi-
  Prefix: adhi
  Root: vas (class 1)

वरुणेन (varuṇena) - by Varuṇa (the god of the oceans and cosmic order)

(proper noun)

Instrumental, masculine, singular of varuṇa

varuṇa - Varuṇa (Vedic deity, god of oceans, sky, law, and justice)

सुरक्षितम् (surakṣitam) - Rasātala, which was well-protected (well-protected, properly guarded)

(adjective)

Accusative, neuter, singular of surakṣita

surakṣita - well-protected, properly guarded, safe

Past Passive Participle (within compound)

Derived from the root √rakṣ (to protect) with prefix su-

Compound type : Pra-ādi Tatpuruṣa (su+rakṣita)

• su – good, well, excellent
  indeclinable
• rakṣita – protected, guarded, preserved
  adjective (neuter)
  Past Passive Participle
  Derived from the root √rakṣ (to protect)
  Root: rakṣ (class 1)