महाभारतः mahābhārataḥ - book-5, chapter-47, verse-21

सुखोचितो दुःखशय्यां वनेषु दीर्घं कालं नकुलो यामशेत ।
आशीविषः क्रुद्ध इव श्वसन्भृशं तदा युद्धं धार्तराष्ट्रोऽन्वतप्स्यत् ॥२१॥

21. sukhocito duḥkhaśayyāṁ vaneṣu; dīrghaṁ kālaṁ nakulo yāmaśeta ,
āśīviṣaḥ kruddha iva śvasanbhṛśaṁ; tadā yuddhaṁ dhārtarāṣṭro'nvatapsyat.

21. sukha-ucitaḥ duḥkha-śayyām vaneṣu
dīrgham kālam nakulaḥ yāmam aśeta
āśīviṣaḥ kruddhaḥ iva śvasan bhṛśam
tadā yuddham dhārtarāṣṭraḥ anvatapsyat

21. When Nakula, who was accustomed to comfort, had to lie for a long time on a bed of hardship in the forests, breathing heavily and fiercely like an enraged poisonous snake, then Dhritarashtra's son will regret the war.

Words meanings summery:

• सुख-उचितः (sukha-ucitaḥ) - accustomed to comfort (accustomed to pleasure, habituated to comfort)

• दुःख-शय्याम् (duḥkha-śayyām) - bed of hardship (bed of sorrow, hard bed, bed of distress)

• वनेषु (vaneṣu) - in the forests (in the forests, among the trees)

• दीर्घम् (dīrgham) - long (long, lengthy)

• कालम् (kālam) - time (time, period, season)

• नकुलः (nakulaḥ) - Nakula

• यामम् (yāmam) - for watches (of the night) (a watch (of the night), a quarter of a day/night)

• अशेत (aśeta) - he had to lie (he lay, he rested)

• आशीविषः (āśīviṣaḥ) - a poisonous snake (a poisonous snake, a snake whose fangs contain poison)

• क्रुद्धः (kruddhaḥ) - enraged (angry, enraged, furious)

• इव (iva) - like (like, as, as if)

• श्वसन् (śvasan) - breathing heavily (hissing, breathing, panting)

• भृशम् (bhṛśam) - fiercely (greatly, fiercely, vehemently, very much)

• तदा (tadā) - then (then, at that time)

• युद्धम् (yuddham) - the war (battle, war, fight)

• धार्तराष्ट्रः (dhārtarāṣṭraḥ) - Dhritarashtra's son (referring to Duryodhana implicitly) (son of Dhritarashtra, a Kaurava)

• अन्वतप्स्यत् (anvatapsyat) - will regret (will regret, will repent, will suffer for)

Words meanings and morphology

सुख-उचितः (sukha-ucitaḥ) - accustomed to comfort (accustomed to pleasure, habituated to comfort)

(adjective)

Nominative, masculine, singular of sukha-ucita

sukha-ucita - accustomed to pleasure/comfort

From sukha (pleasure) + ucita (accustomed)

Compound type : tatpurusha (sukha+ucita)

• sukha – pleasure, happiness, comfort
  noun (neuter)
• ucita – accustomed, proper, fit
  adjective (masculine)
  Past Passive Participle
  From √uc (to be accustomed)
  Root: uc (class 5)

Note: Modifies Nakulaḥ

दुःख-शय्याम् (duḥkha-śayyām) - bed of hardship (bed of sorrow, hard bed, bed of distress)

(noun)

Accusative, feminine, singular of duḥkha-śayyā

duḥkha-śayyā - bed of sorrow, hard bed

From duḥkha (sorrow) + śayyā (bed)

Compound type : tatpurusha (duḥkha+śayyā)

• duḥkha – sorrow, pain, suffering, distress
  noun (neuter)
• śayyā – bed, couch, lying down
  noun (feminine)
  From root śī (to lie down)
  Root: śī (class 2)

Note: Object of aśeta (implicitly, 'lay on')

वनेषु (vaneṣu) - in the forests (in the forests, among the trees)

(noun)

Locative, neuter, plural of vana

vana - forest, wood, grove, water

दीर्घम् (dīrgham) - long (long, lengthy)

(adjective)

Accusative, masculine, singular of dīrgha

dīrgha - long, tall, extensive

Note: Modifies `kālam`

कालम् (kālam) - time (time, period, season)

(noun)

Accusative, masculine, singular of kāla

kāla - time, period, season, death

Note: Adverbial accusative of duration, 'for a long time'

नकुलः (nakulaḥ) - Nakula

(proper noun)

Nominative, masculine, singular of nakula

nakula - Nakula (a proper name), a mongoose

Note: Subject of aśeta

यामम् (yāmam) - for watches (of the night) (a watch (of the night), a quarter of a day/night)

(noun)

Accusative, masculine, singular of yāma

yāma - a watch (of the night), a quarter of a day/night, period

Note: Adverbial accusative, 'through the watches'

अशेत (aśeta) - he had to lie (he lay, he rested)

(verb)

3rd person , singular, middle, imperfect (Laṅ) of śī

Root: śī (class 2)

Note: Atmanepada form

आशीविषः (āśīviṣaḥ) - a poisonous snake (a poisonous snake, a snake whose fangs contain poison)

(noun)

Nominative, masculine, singular of āśīviṣa

āśīviṣa - a poisonous snake, a snake whose fangs contain poison

From āśī (fangs) + viṣa (poison)

Compound type : bahuvrihi (āśī+viṣa)

• āśī – fangs, a serpent's tooth
  noun (feminine)
• viṣa – poison
  noun (neuter)

Note: Part of the simile

क्रुद्धः (kruddhaḥ) - enraged (angry, enraged, furious)

(adjective)

Nominative, masculine, singular of kruddha

kruddha - angry, enraged, furious

Past Passive Participle

From root krudh (to be angry)

Root: krudh (class 4)

Note: Modifies āśīviṣaḥ

इव (iva) - like (like, as, as if)

(indeclinable)

Note: Introduces a simile

श्वसन् (śvasan) - breathing heavily (hissing, breathing, panting)

(adjective)

Nominative, masculine, singular of śvasat

śvasat - hissing, breathing, panting

Present Active Participle

From root śvas (to breathe, hiss)

Root: śvas (class 2)

Note: Modifies Nakulaḥ implicitly

भृशम् (bhṛśam) - fiercely (greatly, fiercely, vehemently, very much)

(indeclinable)

Note: Adverb modifying śvasan

तदा (tadā) - then (then, at that time)

(indeclinable)

Note: Conjunction for main clause

युद्धम् (yuddham) - the war (battle, war, fight)

(noun)

Accusative, neuter, singular of yuddha

yuddha - battle, war, fight

Past Passive Participle (often substantivized)

From root yudh (to fight)

Root: yudh (class 4)

Note: Object of 'anvatapsyat'

धार्तराष्ट्रः (dhārtarāṣṭraḥ) - Dhritarashtra's son (referring to Duryodhana implicitly) (son of Dhritarashtra, a Kaurava)

(proper noun)

Nominative, masculine, singular of dhārtarāṣṭra

dhārtarāṣṭra - son of Dhritarashtra, a Kaurava

Derived from Dhṛtarāṣṭra (Dhritarashtra)

Note: Subject of 'anvatapsyat'

अन्वतप्स्यत् (anvatapsyat) - will regret (will regret, will repent, will suffer for)

(verb)

3rd person , singular, active, conditional future (Lṛṅ) of anutap

From anu-√tap (to suffer after, to repent)

Prefix: anu

Root: tap (class 1)