महाभारतः mahābhārataḥ - book-3, chapter-93, verse-10

सरो गयशिरो यत्र पुण्या चैव महानदी ।
ऋषिजुष्टं सुपुण्यं तत्तीर्थं ब्रह्मसरोत्तमम् ॥१०॥

10. saro gayaśiro yatra puṇyā caiva mahānadī ,
ṛṣijuṣṭaṁ supuṇyaṁ tattīrthaṁ brahmasarottamam.

10. saraḥ gayaśiraḥ yatra puṇyā ca eva mahānadī
ṛṣijuṣṭam supuṇyam tat tīrtham brahmasarottamam

10. There, where the lake Gayaśiras and the sacred great river are found, that holy place (tīrtha), frequented by sages and exceedingly sacred, is considered the foremost of Brahma's lakes.

Words meanings summery:

• सरः (saraḥ) - lake, pond

• गयशिरः (gayaśiraḥ) - The lake named Gayaśiras, a holy place. (Gaya's head (a specific holy place/lake))

• यत्र (yatra) - where, in which place

• पुण्या (puṇyā) - sacred, holy, virtuous

• च (ca) - and, also

• एव (eva) - indeed, certainly, only

• महानदी (mahānadī) - great river

• ऋषिजुष्टम् (ṛṣijuṣṭam) - frequented by sages

• सुपुण्यम् (supuṇyam) - very sacred, exceedingly meritorious

• तत् (tat) - that, that one

• तीर्थम् (tīrtham) - holy place, ford, sacred bathing place

• ब्रह्मसरोत्तमम् (brahmasarottamam) - the best of Brahma's lakes

Words meanings and morphology

सरः (saraḥ) - lake, pond

(noun)

Nominative, neuter, singular of saras

saras - lake, pond

गयशिरः (gayaśiraḥ) - The lake named Gayaśiras, a holy place. (Gaya's head (a specific holy place/lake))

(proper noun)

Nominative, neuter, singular of gayaśiras

gayaśiras - Gaya's head (name of a holy lake)

Compound type : tatpurusha (gaya+śiras)

• gaya – Gaya (name of a king or sage)
  proper noun (masculine)
• śiras – head, top
  noun (neuter)

यत्र (yatra) - where, in which place

(indeclinable)

पुण्या (puṇyā) - sacred, holy, virtuous

(adjective)

Nominative, feminine, singular of puṇya

puṇya - sacred, holy, meritorious

च (ca) - and, also

(indeclinable)

एव (eva) - indeed, certainly, only

(indeclinable)

महानदी (mahānadī) - great river

(noun)

Nominative, feminine, singular of mahānadī

mahānadī - great river

Compound type : tatpurusha (mahā+nadī)

• mahā – great, large
  adjective
• nadī – river
  noun (feminine)

ऋषिजुष्टम् (ṛṣijuṣṭam) - frequented by sages

(adjective)

Nominative, neuter, singular of ṛṣijuṣṭa

ṛṣijuṣṭa - frequented by sages, served by sages

Past Passive Participle

Compound formed with ṛṣi and juṣṭa (PPP of juṣ)

Compound type : tatpurusha (ṛṣi+juṣṭa)

• ṛṣi – sage, seer
  noun (masculine)
• juṣṭa – frequented, served, pleased
  adjective (neuter)
  Past Passive Participle
  Root: juṣ (class 1)

सुपुण्यम् (supuṇyam) - very sacred, exceedingly meritorious

(adjective)

Nominative, neuter, singular of supuṇya

supuṇya - very sacred, exceedingly meritorious

Compound type : prādi (su+puṇya)

• su – good, very, well
  indeclinable
• puṇya – sacred, holy, meritorious
  adjective (neuter)

तत् (tat) - that, that one

(pronoun)

Nominative, neuter, singular of tad

tad - that, that one

तीर्थम् (tīrtham) - holy place, ford, sacred bathing place

(noun)

Nominative, neuter, singular of tīrtha

tīrtha - holy place, ford, sacred bathing place

Root: tṛ (class 1)

ब्रह्मसरोत्तमम् (brahmasarottamam) - the best of Brahma's lakes

(noun)

Nominative, neuter, singular of brahmasarottama

brahmasarottama - the best of Brahma's lakes, foremost Brahma-lake

Compound type : tatpurusha (brahmasaras+uttama)

• brahman – Brahma (the creator god), sacred utterance, the Absolute
  noun (masculine)
• saras – lake, pond
  noun (neuter)
• uttama – best, excellent, foremost
  adjective (neuter)