महाभारतः mahābhārataḥ - book-3, chapter-143, verse-21

निर्जग्मुस्ते शनैः सर्वे समाजग्मुश्च भारत ।
प्रतस्थुश्च पुनर्वीराः पर्वतं गन्धमादनम् ॥२१॥

21. nirjagmuste śanaiḥ sarve samājagmuśca bhārata ,
pratasthuśca punarvīrāḥ parvataṁ gandhamādanam.

21. nirjagmuḥ te śanaiḥ sarve samājagmuḥ ca bhārata
pratasthuḥ ca punaḥ vīrāḥ parvatam gandhamādanam

21. O descendant of Bharata, all of them slowly departed and then assembled. The heroes then set out again for Mount Gandhamadana.

Words meanings summery:

• निर्जग्मुः (nirjagmuḥ) - they went out, they departed

• ते (te) - they

• शनैः (śanaiḥ) - slowly, gradually

• सर्वे (sarve) - all, everyone

• समाजग्मुः (samājagmuḥ) - they gathered, they assembled

• च (ca) - and

• भारत (bhārata) - addressed to Dhritarashtra or Janamejaya in the narrative (O descendant of Bharata)

• प्रतस्थुः (pratasthuḥ) - they set out

• च (ca) - and

• पुनः (punaḥ) - again, anew

• वीराः (vīrāḥ) - refers to the Pandavas (heroes, brave men)

• पर्वतम् (parvatam) - to the mountain

• गन्धमादनम् (gandhamādanam) - Gandhamadana (a proper noun for a mountain)

Words meanings and morphology

निर्जग्मुः (nirjagmuḥ) - they went out, they departed

(verb)

3rd person , plural, active, perfect (liṭ) of nir-gam

Prefix: nir

Root: gam (class 1)

ते (te) - they

(pronoun)

Nominative, masculine, plural of tad

tad - that, he, she, it

शनैः (śanaiḥ) - slowly, gradually

(indeclinable)

सर्वे (sarve) - all, everyone

(adjective)

Nominative, masculine, plural of sarva

sarva - all, every

समाजग्मुः (samājagmuḥ) - they gathered, they assembled

(verb)

3rd person , plural, active, perfect (liṭ) of sam-ā-gam

Prefixes: sam+ā

Root: gam (class 1)

च (ca) - and

(indeclinable)

भारत (bhārata) - addressed to Dhritarashtra or Janamejaya in the narrative (O descendant of Bharata)

(proper noun)

Vocative, masculine, singular of bhārata

bhārata - descendant of Bharata, relating to Bharata

Patronymic derivation from Bharata.

Root: bhṛ

प्रतस्थुः (pratasthuḥ) - they set out

(verb)

3rd person , plural, active, perfect (liṭ) of pra-sthā

Prefix: pra

Root: sthā (class 1)

च (ca) - and

(indeclinable)

पुनः (punaḥ) - again, anew

(indeclinable)

वीराः (vīrāḥ) - refers to the Pandavas (heroes, brave men)

(noun)

Nominative, masculine, plural of vīra

vīra - hero, brave, strong

पर्वतम् (parvatam) - to the mountain

(noun)

Accusative, masculine, singular of parvata

parvata - mountain, hill

Root: pṛ

गन्धमादनम् (gandhamādanam) - Gandhamadana (a proper noun for a mountain)

(proper noun)

Accusative, masculine, singular of gandhamādana

gandhamādana - intoxicated by fragrance; a mountain name

Formed from gandha (smell/fragrance) and mādana (intoxicating).

Compound type : karmadhāraya (gandha+mādana)

• gandha – smell, fragrance, scent
  noun (masculine)
• mādana – intoxicating, gladdening, exciting
  adjective (masculine)
  Agent Noun/Adjective from causative root
  Derived from root 'mad' (to rejoice, be intoxicated) with suffix -ana.
  Root: mad (class 4)

Note: Adjective to 'parvatam', hence same case/gender/number.