वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-1, chapter-39, verse-11

पितुर्वचनमास्थाय सगरस्य महात्मनः ।
षष्टिः पुत्रसहस्राणि रसातलमभिद्रवन् ॥११॥

11. piturvacanamāsthāya sagarasya mahātmanaḥ ,
ṣaṣṭiḥ putrasahasrāṇi rasātalamabhidravan.

11. pituḥ vacanam āsthāya sagarasya mahātmanaḥ
ṣaṣṭiḥ putra-sahasrāṇi rasātalam abhidravan

11. mahātmanaḥ pituḥ sagarasya vacanam āsthāya,
ṣaṣṭiḥ putra-sahasrāṇi rasātalam abhidravan

11. Following the command of their noble father Sagara, sixty thousand sons rushed towards Rasātala.

Words meanings summery:

• पितुः (pituḥ) - of the father

• वचनम् (vacanam) - word, command, speech

• आस्थाय (āsthāya) - having followed, having adopted, having undertaken

• सगरस्य (sagarasya) - of Sagara

• महात्मनः (mahātmanaḥ) - of the great-souled, of the noble

• षष्टिः (ṣaṣṭiḥ) - sixty

• पुत्र-सहस्राणि (putra-sahasrāṇi) - thousands of sons, a thousand sons

• रसातलम् (rasātalam) - Towards Rasātala, one of the lower worlds (to Rasātala)

• अभिद्रवन् (abhidravan) - rushed towards, ran upon

Words meanings and morphology

पितुः (pituḥ) - of the father

(noun)

Genitive, masculine, singular of pitṛ

pitṛ - father, ancestor

वचनम् (vacanam) - word, command, speech

(noun)

Accusative, neuter, singular of vacana

vacana - word, speech, saying, command

Derived from root vac (to speak)

Root: vac (class 2)

आस्थाय (āsthāya) - having followed, having adopted, having undertaken

(indeclinable)

Absolutive

Absolutive (gerund) from root sthā with prefix ā

Prefix: ā

Root: sthā (class 1)

सगरस्य (sagarasya) - of Sagara

(proper noun)

Genitive, masculine, singular of sagara

sagara - Sagara (a mythical king of the solar dynasty)

महात्मनः (mahātmanaḥ) - of the great-souled, of the noble

(adjective)

Genitive, masculine, singular of mahātman

mahātman - great-souled, noble, magnanimous, (as a noun) a great person

Compound type : bahuvrīhi (mahā+ātman)

• mahā – great, mighty, extensive
  adjective
• ātman – self, soul, essence, spirit, mind
  noun (masculine)

षष्टिः (ṣaṣṭiḥ) - sixty

(numeral)

पुत्र-सहस्राणि (putra-sahasrāṇi) - thousands of sons, a thousand sons

(noun)

Nominative, neuter, plural of putra-sahasra

putra-sahasra - a thousand sons

Compound type : tatpuruṣa (putra+sahasra)

• putra – son, child
  noun (masculine)
• sahasra – thousand
  numeral (neuter)

रसातलम् (rasātalam) - Towards Rasātala, one of the lower worlds (to Rasātala)

(proper noun)

Accusative, neuter, singular of rasātala

rasātala - Rasātala (one of the seven lower worlds or underworlds in Hindu cosmology)

अभिद्रवन् (abhidravan) - rushed towards, ran upon

(verb)

3rd person , plural, active, past imperfect (laṅ) of abhidru

Prefix: abhi

Root: dru (class 1)