महाभारतः mahābhārataḥ - book-3, chapter-85, verse-6

तस्यां गिरिवरः पुण्यो गयो राजर्षिसत्कृतः ।
शिवं ब्रह्मसरो यत्र सेवितं त्रिदशर्षिभिः ॥६॥

6. tasyāṁ girivaraḥ puṇyo gayo rājarṣisatkṛtaḥ ,
śivaṁ brahmasaro yatra sevitaṁ tridaśarṣibhiḥ.

6. tasyām girivaraḥ puṇyaḥ gayaḥ rājarṣisatkṛtaḥ
śivam brahmasaraḥ yatra sevitam tridaśarṣibhiḥ

6. In that place is the sacred and excellent mountain, Gaya, which is honored by royal sages. There too is the auspicious Brahma-lake, frequented by divine sages.

Words meanings summery:

• तस्याम् (tasyām) - in that (place/region, referring to Gomati's location) (in that, in her)

• गिरिवरः (girivaraḥ) - best of mountains, excellent mountain

• पुण्यः (puṇyaḥ) - sacred, holy, virtuous

• गयः (gayaḥ) - Gaya (name of a sacred place/mountain)

• राजर्षिसत्कृतः (rājarṣisatkṛtaḥ) - honored by royal sages

• शिवम् (śivam) - auspicious, benevolent, prosperous

• ब्रह्मसरः (brahmasaraḥ) - Brahma-lake, lake of Brahma

• यत्र (yatra) - where, in which place

• सेवितम् (sevitam) - served, frequented, resorted to

• त्रिदशर्षिभिः (tridaśarṣibhiḥ) - by divine sages

Words meanings and morphology

तस्याम् (tasyām) - in that (place/region, referring to Gomati's location) (in that, in her)

(pronoun)

Locative, feminine, singular of tad

tad - that, she, it

गिरिवरः (girivaraḥ) - best of mountains, excellent mountain

(noun)

Nominative, masculine, singular of girivara

girivara - best of mountains, excellent mountain

Compound type : tatpuruṣa (giri+vara)

• giri – mountain, hill
  noun (masculine)
• vara – best, excellent, boon
  adjective (masculine)

पुण्यः (puṇyaḥ) - sacred, holy, virtuous

(adjective)

Nominative, masculine, singular of puṇya

puṇya - sacred, holy, virtuous, auspicious

गयः (gayaḥ) - Gaya (name of a sacred place/mountain)

(proper noun)

Nominative, masculine, singular of gaya

gaya - Gaya (a sacred city/mountain for ancestral rites)

राजर्षिसत्कृतः (rājarṣisatkṛtaḥ) - honored by royal sages

(adjective)

Nominative, masculine, singular of rājarṣisatkṛta

rājarṣisatkṛta - honored by royal sages

Compound type : tatpuruṣa (rājarṣi+satkṛta)

• rājarṣi – royal sage, king who is also a sage
  noun (masculine)
• satkṛta – honored, respected, well-treated
  adjective (masculine)
  Past Passive Participle
  from root kṛ with prefix sat
  Prefix: sat
  Root: kṛ (class 8)

शिवम् (śivam) - auspicious, benevolent, prosperous

(adjective)

Nominative, neuter, singular of śiva

śiva - auspicious, benevolent, prosperous

ब्रह्मसरः (brahmasaraḥ) - Brahma-lake, lake of Brahma

(noun)

Nominative, neuter, singular of brahmasaras

brahmasaras - lake of Brahma

Compound type : tatpuruṣa (brahman+saras)

• brahman – Brahma (the creator god), supreme reality (brahman)
  noun (masculine)
• saras – lake, pond
  noun (neuter)

यत्र (yatra) - where, in which place

(indeclinable)

सेवितम् (sevitam) - served, frequented, resorted to

(adjective)

Nominative, neuter, singular of sevita

sevita - served, attended, frequented

Past Passive Participle

from root sev

Root: sev (class 1)

त्रिदशर्षिभिः (tridaśarṣibhiḥ) - by divine sages

(noun)

Instrumental, masculine, plural of tridaśarṣi

tridaśarṣi - divine sage (tridaśa - gods; ṛṣi - sage)

Compound type : dvandva (tridaśa+ṛṣi)

• tridaśa – god, deity (literally 'three tens')
  noun (masculine)
• ṛṣi – sage, seer
  noun (masculine)