महाभारतः mahābhārataḥ - book-3, chapter-11, verse-23

इतः प्रच्यवतां रात्रौ यः स तेषां महात्मनाम् ।
आवृत्य मार्गं रौद्रात्मा तस्थौ गिरिरिवाचलः ॥२३॥

23. itaḥ pracyavatāṁ rātrau yaḥ sa teṣāṁ mahātmanām ,
āvṛtya mārgaṁ raudrātmā tasthau giririvācalaḥ.

23. itaḥ pracyavatām rātrau yaḥ saḥ teṣām mahātmanām
āvṛtya mārgam raudrātmā tasthau giriḥ iva acalaḥ

23. That fierce-natured (raudrātman) demon, who, at night, blocked the path of those great-souled (mahātman) ones as they were departing from here, stood like an immovable mountain.

Words meanings summery:

• इतः (itaḥ) - from here, from this place

• प्रच्यवताम् (pracyavatām) - referring to the Pāṇḍavas as they were leaving (of those departing/moving away)

• रात्रौ (rātrau) - at night

• यः (yaḥ) - who, which

• सः (saḥ) - he, that

• तेषाम् (teṣām) - of those (great-souled ones) (of them)

• महात्मनाम् (mahātmanām) - referring to the Pāṇḍavas, who are noble-minded (of the great-souled ones)

• आवृत्य (āvṛtya) - having obstructed, having covered, having encompassed

• मार्गम् (mārgam) - path, way

• रौद्रात्मा (raudrātmā) - referring to Kirmīra, who possessed a terrible nature (fierce-natured, frightful-souled)

• तस्थौ (tasthau) - stood, remained

• गिरिः (giriḥ) - mountain

• इव (iva) - like, as

• अचलः (acalaḥ) - immovable, steadfast

Words meanings and morphology

इतः (itaḥ) - from here, from this place

(indeclinable)

प्रच्यवताम् (pracyavatām) - referring to the Pāṇḍavas as they were leaving (of those departing/moving away)

(adjective)

Genitive, masculine, plural of pracyavat

pracyavat - departing, moving away, falling off

Present Active Participle

Derived from verb root cyu (1st class) with upasarga pra

Prefix: pra

Root: cyu (class 1)

रात्रौ (rātrau) - at night

(noun)

Locative, feminine, singular of rātri

rātri - night

यः (yaḥ) - who, which

(pronoun)

Nominative, masculine, singular of yad

yad - who, which, what

सः (saḥ) - he, that

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

तेषाम् (teṣām) - of those (great-souled ones) (of them)

(pronoun)

Genitive, masculine, plural of tad

tad - that, he, she, it

महात्मनाम् (mahātmanām) - referring to the Pāṇḍavas, who are noble-minded (of the great-souled ones)

(adjective)

Genitive, masculine, plural of mahātman

mahātman - great-souled, noble-minded, exalted (mahātman)

Compound type : bahuvrīhi (mahat+ātman)

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

आवृत्य (āvṛtya) - having obstructed, having covered, having encompassed

(indeclinable)

Absolutive/Gerund

Derived from root vṛ (5th class) with upasarga ā, suffix -tya

Prefix: ā

Root: vṛ (class 5)

मार्गम् (mārgam) - path, way

(noun)

Accusative, masculine, singular of mārga

mārga - path, road, way

रौद्रात्मा (raudrātmā) - referring to Kirmīra, who possessed a terrible nature (fierce-natured, frightful-souled)

(adjective)

Nominative, masculine, singular of raudra-ātman

raudra-ātman - fierce-natured, frightful-souled (lit. terrible-self) (raudrātman)

Compound type : bahuvrīhi (raudra+ātman)

• raudra – terrible, fierce, dreadful
  adjective (masculine)
• ātman – self, soul, spirit, essence (ātman)
  noun (masculine)

तस्थौ (tasthau) - stood, remained

(verb)

3rd person , singular, active, perfect (lit) of sthā

Root: sthā (class 1)

Note: Root sthā (1st class), 3rd person singular perfect active

गिरिः (giriḥ) - mountain

(noun)

Nominative, masculine, singular of giri

giri - mountain, hill

इव (iva) - like, as

(indeclinable)

अचलः (acalaḥ) - immovable, steadfast

(adjective)

Nominative, masculine, singular of acala

acala - immovable, steady, mountain

Compound type : nah (a+cala)

• a – not, un-
  prefix
• cala – moving, trembling, wavering
  adjective (masculine)
  Derived from root cal
  Root: cal