योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-76, verse-16

ततः प्रभृत्यमलतरङ्गभङ्गिनी जगत्पतेः शशिविभृदङ्गसङ्गिनी ।
नभस्तलान्निपतति गां त्रिमार्गगा महात्मनामिव बहुपुण्यसंततिः ॥ १६ ॥

tataḥ prabhṛtyamalataraṅgabhaṅginī jagatpateḥ śaśivibhṛdaṅgasaṅginī ,
nabhastalānnipatati gāṃ trimārgagā mahātmanāmiva bahupuṇyasaṃtatiḥ 16

16. tataḥprabhṛti amalataraṅgabhaṅginī
jagatpateḥ śaśivibhṛdaṅgasaṅginī
nabhastalāt nipatati gām trimārgagā
mahātmanām iva bahupuṇyasaṃtatiḥ

16. tataḥprabhṛti amalataraṅgabhaṅginī
jagatpateḥ śaśivibhṛdaṅgasaṅginī
trimārgagā nabhastalāt gām nipatati
mahātmanām bahupuṇyasaṃtatiḥ iva

16. From that time onwards, the Gaṅgā (trimārgagā), with her pure, breaking waves, always associated with the body of Śiva, the lord of the world, descends from the plane of the sky to the earth, just like the continuous stream of abundant merits belonging to great souls (mahātman).

Words meanings summery:

• ततःप्रभृति (tataḥprabhṛti) - from that time onwards, thenceforth

• अमलतरङ्गभङ्गिनी (amalataraṅgabhaṅginī) - having pure, breaking waves; whose clear waves break

• जगत्पतेः (jagatpateḥ) - of Śiva (of the lord of the world)

• शशिविभृदङ्गसङ्गिनी (śaśivibhṛdaṅgasaṅginī) - associated with the body of Śiva (who bears the moon) (associated with the body of the moon-bearer)

• नभस्तलात् (nabhastalāt) - from the plane of the sky

• निपतति (nipatati) - descends, falls down

• गाम् (gām) - to the earth

• त्रिमार्गगा (trimārgagā) - the Gaṅgā river (moving in three paths (heaven, earth, underworld), the Gaṅgā)

• महात्मनाम् (mahātmanām) - of great souls, of noble persons

• इव (iva) - like, as, as if

• बहुपुण्यसंततिः (bahupuṇyasaṁtatiḥ) - a continuous accumulation of abundant merits

Words meanings and morphology

ततःप्रभृति (tataḥprabhṛti) - from that time onwards, thenceforth

(indeclinable)

Compound type : avyayībhāva (tatas+prabhṛti)

• tatas – from that, thence
  indeclinable
• prabhṛti – beginning from, onwards from
  indeclinable

अमलतरङ्गभङ्गिनी (amalataraṅgabhaṅginī) - having pure, breaking waves; whose clear waves break

(adjective)

Nominative, feminine, singular of amalataraṅgabhaṅgin

amalataraṅgabhaṅgin - having pure, breaking waves

Compound type : bahuvrīhi (amala+taraṅga+bhaṅgin)

• amala – pure, spotless, clear
  adjective (neuter)
  a (negative) + mala (dirt)
  Prefix: a
• taraṅga – wave
  noun (masculine)
  Root: tṛ (class 1)
• bhaṅgin – breaking, having breaks
  adjective (feminine)
  root bhañj (to break) + -in
  Root: bhañj (class 7)

Note: Refers to Gaṅgā

जगत्पतेः (jagatpateḥ) - of Śiva (of the lord of the world)

(noun)

Genitive, masculine, singular of jagatpati

jagatpati - lord of the world

from jagat (world) + pati (lord)

Compound type : tatpuruṣa (jagat+pati)

• jagat – world, universe
  noun (neuter)
  present active participle of gam, but often substantivized
  Root: gam (class 1)
• pati – lord, master, husband
  noun (masculine)

Note: Refers to Śiva.

शशिविभृदङ्गसङ्गिनी (śaśivibhṛdaṅgasaṅginī) - associated with the body of Śiva (who bears the moon) (associated with the body of the moon-bearer)

(adjective)

Nominative, feminine, singular of śaśivibhṛdaṅgasaṅgin

śaśivibhṛdaṅgasaṅgin - associated with the body of the moon-bearer

from śaśin (moon) + vibhṛt (bearing) + aṅga (body) + saṅgin (associated with)

Compound type : bahuvrīhi (śaśin+vibhṛt+aṅga+saṅgin)

• śaśin – moon
  noun (masculine)
• vibhṛt – bearing, holding
  adjective (masculine)
  agent noun/participial suffix
  from upasarga vi + root bhṛ (to bear)
  Prefix: vi
  Root: bhṛ (class 3)
• aṅga – limb, body, part
  noun (neuter)
• saṅgin – attached to, connected with, associated with
  adjective (feminine)
  from sam + root añj (to anoint/join) or saṅga (attachment) + -in
  Prefix: sam
  Root: añj (class 7)

Note: Agrees with trimārgagā (Gaṅgā). The entire phrase 'jagatpateḥ śaśivibhṛdaṅgasaṅginī' implies 'associated with the body of Śiva, who is the lord of the world and bears the moon'.

नभस्तलात् (nabhastalāt) - from the plane of the sky

(noun)

Ablative, neuter, singular of nabhastala

nabhastala - sky-plane, surface of the sky

from nabhas (sky) + tala (surface, plane)

Compound type : tatpuruṣa (nabhas+tala)

• nabhas – sky, atmosphere, heaven
  noun (neuter)
• tala – surface, plane, base
  noun (neuter)

निपतति (nipatati) - descends, falls down

(verb)

3rd person , singular, active, present (laṭ) of pat

Present (laṭ)

upasarga ni + root pat (to fall), present 3rd person singular

Prefix: ni

Root: pat (class 1)

Note: Refers to Gaṅgā

गाम् (gām) - to the earth

(noun)

Accusative, feminine, singular of go

go - cow, earth, ray of light

Note: Used here in the sense of 'earth'.

त्रिमार्गगा (trimārgagā) - the Gaṅgā river (moving in three paths (heaven, earth, underworld), the Gaṅgā)

(noun)

Nominative, feminine, singular of trimārgaga

trimārgaga - moving in three paths

from tri (three) + mārga (path) + ga (going)

Compound type : bahuvrīhi (tri+mārga+ga)

• tri – three
  numeral
• mārga – path, road
  noun (masculine)
  Root: mṛg (class 1)
• ga – going, moving, causing to go
  adjective (feminine)
  agent noun
  from root gam (to go)
  Root: gam (class 1)

Note: An epithet of Gaṅgā.

महात्मनाम् (mahātmanām) - of great souls, of noble persons

(noun)

Genitive, masculine, plural of mahātman

mahātman - great soul (mahātman), noble, high-minded

from mahat (great) + ātman (soul)

Compound type : bahuvrīhi (mahat+ātman)

• mahat – great, large, vast
  adjective (neuter)
• ātman – self, soul (ātman), essence
  noun (masculine)

इव (iva) - like, as, as if

(indeclinable)

बहुपुण्यसंततिः (bahupuṇyasaṁtatiḥ) - a continuous accumulation of abundant merits

(noun)

Nominative, feminine, singular of bahupuṇyasaṃtati

bahupuṇyasaṁtati - continuous accumulation of abundant merits

from bahu (much) + puṇya (merit) + saṃtati (continuity, stream)

Compound type : tatpuruṣa (bahu+puṇya+saṃtati)

• bahu – much, many, abundant
  adjective (neuter)
• puṇya – merit, virtue, good deed
  noun (neuter)
• saṃtati – continuity, succession, stream, progeny
  noun (feminine)
  from sam + tan (to stretch)
  Prefix: sam
  Root: tan (class 8)