महाभारतः mahābhārataḥ - book-3, chapter-104, verse-2

महता कालयोगेन प्रकृतिं यास्यतेऽर्णवः ।
ज्ञातीन्वै कारणं कृत्वा महाराज्ञो भगीरथात् ॥२॥

2. mahatā kālayogena prakṛtiṁ yāsyate'rṇavaḥ ,
jñātīnvai kāraṇaṁ kṛtvā mahārājño bhagīrathāt.

2. mahatā kālayogena prakṛtim yāsyate arṇavaḥ
jñātīn vai kāraṇam kṛtvā mahārājñaḥ bhagīrathāt

2. Over a long period of time (kālayoga), the ocean will return to its natural state (prakṛti), with the kinsmen (jñāti) being the reason, by means of the great king Bhāgīratha.

Words meanings summery:

• महता (mahatā) - by the great, by the vast

• कालयोगेन (kālayogena) - through a long period of time (kālayoga) (by the conjunction/passage of time, through a period of time)

• प्रकृतिम् (prakṛtim) - its natural state (prakṛti) (nature, original condition)

• यास्यते (yāsyate) - it will go, it will attain

• अर्णवः (arṇavaḥ) - the ocean

• ज्ञातीन् (jñātīn) - kinsmen (jñāti) (kinsmen, relatives)

• वै (vai) - indeed, surely

• कारणम् (kāraṇam) - the cause (cause, reason, instrument)

• कृत्वा (kṛtvā) - having made, having done

• महाराज्ञः (mahārājñaḥ) - of the great king

• भगीरथात् (bhagīrathāt) - from Bhāgīratha, by Bhāgīratha

Words meanings and morphology

महता (mahatā) - by the great, by the vast

(adjective)

Instrumental, masculine, singular of mahat

mahat - great, large, mighty

कालयोगेन (kālayogena) - through a long period of time (kālayoga) (by the conjunction/passage of time, through a period of time)

(noun)

Instrumental, masculine, singular of kālayoga

kālayoga - conjunction of time, passage of time

Compound type : tatpurusha (kāla+yoga)

• kāla – time
  noun (masculine)
• yoga – conjunction, union, discipline (yoga)
  noun (masculine)
  Root: yuj

प्रकृतिम् (prakṛtim) - its natural state (prakṛti) (nature, original condition)

(noun)

Accusative, feminine, singular of prakṛti

prakṛti - nature, original form, source, primal matter (prakṛti)

यास्यते (yāsyate) - it will go, it will attain

(verb)

3rd person , singular, middle, future (lṛṭ) of yā

Future tense form (lṛṭ)

Root: yā (class 2)

अर्णवः (arṇavaḥ) - the ocean

(noun)

Nominative, masculine, singular of arṇava

arṇava - ocean, sea

ज्ञातीन् (jñātīn) - kinsmen (jñāti) (kinsmen, relatives)

(noun)

Accusative, masculine, plural of jñāti

jñāti - kinsman, relative (jñāti)

वै (vai) - indeed, surely

(indeclinable)

कारणम् (kāraṇam) - the cause (cause, reason, instrument)

(noun)

Accusative, neuter, singular of kāraṇa

kāraṇa - cause, reason, motive, instrument

action noun

from root kṛ

Root: kṛ

कृत्वा (kṛtvā) - having made, having done

(indeclinable)

absolutive/gerund

-tvā suffix

Root: kṛ (class 8)

महाराज्ञः (mahārājñaḥ) - of the great king

(noun)

Genitive, masculine, singular of mahārājan

mahārājan - great king, emperor

Compound type : karmadhāraya (mahā+rājan)

• mahā – great, mighty, vast
  adjective
• rājan – king, ruler
  noun (masculine)

Note: Could also be ablative singular

भगीरथात् (bhagīrathāt) - from Bhāgīratha, by Bhāgīratha

(proper noun)

Ablative, masculine, singular of bhagīratha

bhagīratha - Bhāgīratha (a legendary king of the Ikṣvāku dynasty, known for bringing the Ganges to earth)