महाभारतः mahābhārataḥ - book-13, chapter-50, verse-6

स्थाणुभूतः शुचिर्भूत्वा दैवतेभ्यः प्रणम्य च ।
गङ्गायमुनयोर्मध्ये जलं संप्रविवेश ह ॥६॥

6. sthāṇubhūtaḥ śucirbhūtvā daivatebhyaḥ praṇamya ca ,
gaṅgāyamunayormadhye jalaṁ saṁpraviveśa ha.

6. sthāṇubhūtaḥ śuciḥ bhūtvā daivatebhyaḥ praṇamya
ca gaṅgāyamunayoḥ madhye jalaṃ saṃpraviveśa ha

6. sthāṇubhūtaḥ śuciḥ bhūtvā daivatebhyaḥ ca praṇamya
gaṅgāyamunayoḥ madhye jalaṃ ha saṃpraviveśa

6. Becoming as still as a post (sthāṇubhūta) and purifying himself, and having bowed down to the deities, he then plunged into the water at the confluence of the Gaṅgā and Yamunā.

Words meanings summery:

• स्थाणुभूतः (sthāṇubhūtaḥ) - having become motionless (like a post) (having become like a post/pillar, motionless)

• शुचिः (śuciḥ) - pure (pure, clean, bright)

• भूत्वा (bhūtvā) - having become (having become, having been)

• दैवतेभ्यः (daivatebhyaḥ) - to the deities (to/for the deities, from the deities)

• प्रणम्य (praṇamya) - having bowed down (having bowed down, having saluted)

• च (ca) - and (and, also)

• गङ्गायमुनयोः (gaṅgāyamunayoḥ) - of the Gaṅgā and Yamunā rivers (of the Gaṅgā and Yamunā)

• मध्ये (madhye) - in the middle (implying confluence) (in the middle, in the midst of, between)

• जलं (jalaṁ) - the water (water)

• संप्रविवेश (saṁpraviveśa) - plunged into (entered fully, penetrated)

• ह (ha) - indeed (indeed, certainly (particle))

Words meanings and morphology

स्थाणुभूतः (sthāṇubhūtaḥ) - having become motionless (like a post) (having become like a post/pillar, motionless)

(adjective)

Nominative, masculine, singular of sthāṇubhūta

sthāṇubhūta - become like a post, motionless, immobile

Compound of sthāṇu and bhūta.

Compound type : karmadhāraya (sthāṇu+bhūta)

• sthāṇu – post, pillar; immobile, fixed; an epithet of Śiva
  noun (masculine)
• bhūta – become, happened, produced; being, creature
  adjective (neuter)
  Past Passive Participle
  From root bhū 'to be, become'.
  Root: bhū (class 1)

शुचिः (śuciḥ) - pure (pure, clean, bright)

(adjective)

Nominative, masculine, singular of śuci

śuci - pure, clean, bright, sacred

भूत्वा (bhūtvā) - having become (having become, having been)

(indeclinable)

Absolutive/Gerund

From root bhū 'to be, become'.

Root: bhū (class 1)

दैवतेभ्यः (daivatebhyaḥ) - to the deities (to/for the deities, from the deities)

(noun)

Dative, neuter, plural of daivata

daivata - divine, relating to gods; a deity, a god

Note: Often used with praṇamya.

प्रणम्य (praṇamya) - having bowed down (having bowed down, having saluted)

(indeclinable)

Absolutive/Gerund

From root nam 'to bow' with prefix pra-.

Prefix: pra

Root: nam (class 1)

च (ca) - and (and, also)

(indeclinable)

गङ्गायमुनयोः (gaṅgāyamunayoḥ) - of the Gaṅgā and Yamunā rivers (of the Gaṅgā and Yamunā)

(proper noun)

Genitive, feminine, dual of gaṅgāyamunā

gaṅgāyamunā - the Gaṅgā and Yamunā rivers

Dvanda compound of Gaṅgā and Yamunā.

Compound type : dvandva (gaṅgā+yamunā)

• gaṅgā – the river Ganges
  proper noun (feminine)
• yamunā – the river Yamuna
  proper noun (feminine)

मध्ये (madhye) - in the middle (implying confluence) (in the middle, in the midst of, between)

(noun)

Locative, neuter, singular of madhya

madhya - middle, central; interior; interval

जलं (jalaṁ) - the water (water)

(noun)

Accusative, neuter, singular of jala

jala - water

संप्रविवेश (saṁpraviveśa) - plunged into (entered fully, penetrated)

(verb)

3rd person , singular, active, perfect (liṭ) of saṃpraviś

Perfect tense, 3rd person singular

From root viś 'to enter' with prefixes saṃ- and pra-.

Prefixes: sam+pra

Root: viś (class 6)

ह (ha) - indeed (indeed, certainly (particle))

(indeclinable)