महाभारतः mahābhārataḥ - book-9, chapter-36, verse-35

यत्र भूयो निववृते प्राङ्मुखा वै सरस्वती ।
ऋषीणां नैमिषेयाणामवेक्षार्थं महात्मनाम् ॥३५॥

35. yatra bhūyo nivavṛte prāṅmukhā vai sarasvatī ,
ṛṣīṇāṁ naimiṣeyāṇāmavekṣārthaṁ mahātmanām.

35. yatra bhūyaḥ nivavṛte prāṅmukhā vai sarasvatī
ṛṣīṇām naimiṣeyāṇām avekṣārtham mahātmanām

35. yatra sarasvatī prāṅmukhā vai bhūyaḥ nivavṛte
naimiṣeyāṇām mahātmanām ṛṣīṇām avekṣārtham

35. At that spot, the Sarasvati river, facing east, indeed turned back again, in order to attend to the great-souled sages of Naimiṣa.

Words meanings summery:

• यत्र (yatra) - where, in which place

• भूयः (bhūyaḥ) - again, further, more

• निववृते (nivavṛte) - turned back, returned

• प्राङ्मुखा (prāṅmukhā) - facing east

• वै (vai) - indeed, verily, surely

• सरस्वती (sarasvatī) - the Sarasvati river

• ऋषीणाम् (ṛṣīṇām) - of the sages, of the seers

• नैमिषेयाणाम् (naimiṣeyāṇām) - Referring to the sages residing in the Naimiṣa forest. (of those from Naimiṣa (forest))

• अवेक्षार्थम् (avekṣārtham) - for the purpose of seeing, for attending to, for observing

• महात्मनाम् (mahātmanām) - of the great-souled ones, of the noble-minded

Words meanings and morphology

यत्र (yatra) - where, in which place

(indeclinable)

भूयः (bhūyaḥ) - again, further, more

(indeclinable)

निववृते (nivavṛte) - turned back, returned

(verb)

3rd person , singular, middle, perfect (liṭ) of nivavṛte

Prefix: ni

Root: vṛt (class 1)

प्राङ्मुखा (prāṅmukhā) - facing east

(adjective)

Nominative, feminine, singular of prāṅmukha

prāṅmukha - facing east, having the face turned forwards

Compound type : bahuvrīhi (prāñc+mukha)

• prāñc – eastern, facing forward
  adjective
• mukha – face, mouth, front, direction
  noun (neuter)

वै (vai) - indeed, verily, surely

(indeclinable)

सरस्वती (sarasvatī) - the Sarasvati river

(proper noun)

Nominative, feminine, singular of sarasvatī

sarasvatī - Sarasvati (name of a river, goddess of knowledge)

ऋषीणाम् (ṛṣīṇām) - of the sages, of the seers

(noun)

Genitive, masculine, plural of ṛṣi

ṛṣi - sage, seer, inspired poet, Vedic hymn author

नैमिषेयाणाम् (naimiṣeyāṇām) - Referring to the sages residing in the Naimiṣa forest. (of those from Naimiṣa (forest))

(adjective)

Genitive, masculine, plural of naimiṣeya

naimiṣeya - belonging to Naimiṣa, inhabitant of Naimiṣa

Derived from the proper noun Naimiṣa with the suffix -eya indicating relation or origin.

अवेक्षार्थम् (avekṣārtham) - for the purpose of seeing, for attending to, for observing

(indeclinable)

Compound type : tatpuruṣa (avekṣa+artha)

• avekṣa – seeing, observing, looking at
  noun (masculine)
  Derived from root īkṣ with upasarga ava.
  Prefix: ava
  Root: īkṣ (class 1)
• artha – purpose, aim, meaning, wealth
  noun (masculine)

Note: Used adverbially.

महात्मनाम् (mahātmanām) - of the great-souled ones, of the noble-minded

(adjective)

Genitive, masculine, plural of mahātman

mahātman - great-souled, high-minded, noble, of great (ātman) self

Compound type : bahuvrīhi (mahā+ātman)

• mahā – great, large, mighty
  adjective
• ātman – self, soul, spirit, essential nature
  noun (masculine)