महाभारतः mahābhārataḥ - book-1, chapter-48, verse-19

अजस्रं निपतत्स्वग्नौ नागेषु भृशदुःखितः ।
अल्पशेषपरीवारो वासुकिः पर्यतप्यत ॥१९॥

19. ajasraṁ nipatatsvagnau nāgeṣu bhṛśaduḥkhitaḥ ,
alpaśeṣaparīvāro vāsukiḥ paryatapyata.

19. ajasram nipatatsu agnau nāgeṣu bhṛśaduḥkhitaḥ
alpaśeṣaparīvāraḥ vāsukiḥ paryatapyata

19. As the serpents constantly fell into the fire, Vāsuki, whose retinue was greatly diminished, became deeply distressed and grieved.

Words meanings summery:

• अजस्रम् (ajasram) - constantly, incessantly

• निपतत्सु (nipatatsu) - falling into

• अग्नौ (agnau) - in the fire

• नागेषु (nāgeṣu) - among the serpents, regarding the serpents

• भृशदुःखितः (bhṛśaduḥkhitaḥ) - greatly distressed, very sorrowful

• अल्पशेषपरीवारः (alpaśeṣaparīvāraḥ) - having a small remaining retinue, whose retinue was much diminished

• वासुकिः (vāsukiḥ) - Vāsuki (name of a serpent king)

• पर्यतप्यत (paryatapyata) - grieved deeply, was tormented

Words meanings and morphology

अजस्रम् (ajasram) - constantly, incessantly

(indeclinable)

निपतत्सु (nipatatsu) - falling into

(verb)

plural, active, present participle of nipatatsu

present participle

present active participle of √pat with ni

Prefix: ni

Root: pat (class 1)

अग्नौ (agnau) - in the fire

(noun)

Locative, masculine, singular of agni

agni - fire; god of fire

नागेषु (nāgeṣu) - among the serpents, regarding the serpents

(noun)

Locative, masculine, plural of nāga

nāga - serpent, snake; elephant

भृशदुःखितः (bhṛśaduḥkhitaḥ) - greatly distressed, very sorrowful

(adjective)

Nominative, masculine, singular of bhṛśaduḥkhita

bhṛśaduḥkhita - greatly distressed, very sorrowful

Compound type : karmadhāraya (bhṛśa+duḥkhita)

• bhṛśa – much, strong, intense, greatly
  indeclinable
• duḥkhita – distressed, pained, sorrowful
  adjective (masculine)
  past participle
  passive past participle of √duḥkh
  Root: duḥkh

अल्पशेषपरीवारः (alpaśeṣaparīvāraḥ) - having a small remaining retinue, whose retinue was much diminished

(adjective)

Nominative, masculine, singular of alpaśeṣaparīvāra

alpaśeṣaparīvāra - having a small remaining retinue

Compound type : bahuvrīhi (alpa+śeṣa+parīvāra)

• alpa – small, little, few
  adjective (masculine)
• śeṣa – remainder, remaining
  noun (masculine)
• parīvāra – retinue, attendants, family
  noun (masculine)

वासुकिः (vāsukiḥ) - Vāsuki (name of a serpent king)

(noun)

Nominative, masculine, singular of vāsuki

vāsuki - Vāsuki (name of a nāga king)

पर्यतप्यत (paryatapyata) - grieved deeply, was tormented

(verb)

3rd person , singular, active, past imperfect (laṅ) of pari-tap

Prefix: pari

Root: tap (class 1)