महाभारतः mahābhārataḥ - book-3, chapter-157, verse-11

आर्ष्टिषेणाश्रमे तेषां वसतां वै महात्मनाम् ।
अगच्छन्बहवो मासाः पश्यतां महदद्भुतम् ॥११॥

11. ārṣṭiṣeṇāśrame teṣāṁ vasatāṁ vai mahātmanām ,
agacchanbahavo māsāḥ paśyatāṁ mahadadbhutam.

11. ārṣṭiṣeṇāśrame teṣām vasatām vai mahātmanām
agacchan bahavaḥ māsāḥ paśyatām mahat adbhutam

11. While those great souls (mahātman) were dwelling in the hermitage (āśrama) of Ārṣṭiṣeṇa, indeed many months passed as they witnessed a great wonder.

Words meanings summery:

• आर्ष्टिषेणाश्रमे (ārṣṭiṣeṇāśrame) - in the hermitage of Ārṣṭiṣeṇa

• तेषाम् (teṣām) - of those, to them

• वसताम् (vasatām) - of those dwelling, while dwelling

• वै (vai) - indeed, verily (emphatic particle)

• महात्मनाम् (mahātmanām) - of the great souls (mahātman)

• अगच्छन् (agacchan) - they went, they passed (referring to months)

• बहवः (bahavaḥ) - many

• मासाः (māsāḥ) - months

• पश्यताम् (paśyatām) - of those seeing, while seeing

• महत् (mahat) - great, large

• अद्भुतम् (adbhutam) - wonder, marvel

Words meanings and morphology

आर्ष्टिषेणाश्रमे (ārṣṭiṣeṇāśrame) - in the hermitage of Ārṣṭiṣeṇa

(noun)

Locative, masculine, singular of ārṣṭiṣeṇāśrama

ārṣṭiṣeṇāśrama - hermitage of Ārṣṭiṣeṇa

Compound type : tatpurusha (ārṣṭiṣeṇa+āśrama)

• ārṣṭiṣeṇa – Ārṣṭiṣeṇa (proper name of a sage)
  proper noun (masculine)
• āśrama – hermitage, retreat, stage of life (āśrama)
  noun (masculine)

तेषाम् (teṣām) - of those, to them

(pronoun)

Genitive, masculine, plural of tad

tad - that, those

वसताम् (vasatām) - of those dwelling, while dwelling

(adjective)

Genitive, masculine, plural of vasat

vasat - dwelling, residing

Present Active Participle

Root: vas (class 1)

वै (vai) - indeed, verily (emphatic particle)

(indeclinable)

महात्मनाम् (mahātmanām) - of the great souls (mahātman)

(noun)

Genitive, masculine, plural of mahātman

mahātman - great-souled, noble, great person (mahātman)

Compound type : bahuvrihi (mahat+ātman)

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

अगच्छन् (agacchan) - they went, they passed (referring to months)

(verb)

3rd person , plural, active, past imperfect (laṅ) of gam

Root: gam (class 1)

बहवः (bahavaḥ) - many

(adjective)

Nominative, masculine, plural of bahu

bahu - many, much

मासाः (māsāḥ) - months

(noun)

Nominative, masculine, plural of māsa

māsa - month

पश्यताम् (paśyatām) - of those seeing, while seeing

(adjective)

Genitive, masculine, plural of paśyat

paśyat - seeing, beholding

Present Active Participle

Root: dṛś (class 1)

महत् (mahat) - great, large

(adjective)

Nominative, neuter, singular of mahat

mahat - great, large, extensive

अद्भुतम् (adbhutam) - wonder, marvel

(noun)

Nominative, neuter, singular of adbhuta

adbhuta - wonder, marvel, surprising