योगवासिष्ठः yogavāsiṣṭhaḥ - book-1, chapter-14, verse-17

शरीरबिलविश्रान्तैर्विषदाहप्रदायिभिः ।
रोगैरापीयते रौद्रैर्व्यालैरिव वनानिलः ॥ १७ ॥

śarīrabilaviśrāntairviṣadāhapradāyibhiḥ ,
rogairāpīyate raudrairvyālairiva vanānilaḥ 17

17. śarīrabilaviśrāntaiḥ viṣadāhapradāyibhiḥ
rogaiḥ āpīyate raudraiḥ vyālaiḥ iva vanānilaḥ

17. The life-force is consumed by terrible diseases that dwell within the body's depths and inflict burning pain like poison, just as the forest wind is consumed by fierce snakes (or wild animals).

Words meanings summery:

• शरीरबिलविश्रान्तैः (śarīrabilaviśrāntaiḥ) - by diseases dwelling within the body (by those dwelling in the cave of the body)

• विषदाहप्रदायिभिः (viṣadāhapradāyibhiḥ) - by diseases inflicting burning pain like poison (by those causing burning pain like poison, inflicting poisonous burning)

• रोगैः (rogaiḥ) - by diseases, by ailments

• आपीयते (āpīyate) - is consumed, is drunk up, is sucked up

• रौद्रैः (raudraiḥ) - by terrible diseases; by fierce wild animals/snakes (by terrible, by fierce, by dreadful ones)

• व्यालैः (vyālaiḥ) - by wild animals, by snakes

• इव (iva) - like, as, as if

• वनानिलः (vanānilaḥ) - the life-force or vital energy of a person (forest wind, vital energy, life-force)

Words meanings and morphology

शरीरबिलविश्रान्तैः (śarīrabilaviśrāntaiḥ) - by diseases dwelling within the body (by those dwelling in the cave of the body)

(adjective)

Instrumental, masculine, plural of śarīrabilaviśrānta

śarīrabilaviśrānta - dwelling in the cave of the body

Compound type : Saptamī-tatpuruṣa / Bahuvrīhi (śarīra+bila+viśrānta)

• śarīra – body, corporeal form
  noun (neuter)
• bila – hole, cave, burrow, cavity
  noun (neuter)
• viśrānta – rested, reposed, dwelling, residing, stopped
  adjective
  Past Passive Participle
  Past Passive Participle of root √śram (to be weary) with prefix vi-.
  Prefix: vi
  Root: śram (class 4)

विषदाहप्रदायिभिः (viṣadāhapradāyibhiḥ) - by diseases inflicting burning pain like poison (by those causing burning pain like poison, inflicting poisonous burning)

(adjective)

Instrumental, masculine, plural of viṣadāhapradāyin

viṣadāhapradāyin - causing burning pain like poison, inflicting poisonous burning

Compound formed from viṣa (poison), dāha (burning), and pradāyin (giving, causing).

Compound type : Ṣaṣṭhī-tatpuruṣa / Upapada-tatpuruṣa (viṣa+dāha+pradāyin)

• viṣa – poison, venom
  noun (neuter)
• dāha – burning, combustion, inflammation
  noun (masculine)
• pradāyin – giving, bestowing, causing
  adjective
  Agent noun
  Agent noun from root √dā (to give) with prefix pra-.
  Prefix: pra
  Root: dā (class 3)

रोगैः (rogaiḥ) - by diseases, by ailments

(noun)

Instrumental, masculine, plural of roga

roga - disease, sickness, ailment, malady

आपीयते (āpīyate) - is consumed, is drunk up, is sucked up

(verb)

3rd person , singular, passive, present (lat) of āpīya

Passive voice of root √pā (to drink) with prefix ā-.

Prefix: ā

Root: pā (class 1)

रौद्रैः (raudraiḥ) - by terrible diseases; by fierce wild animals/snakes (by terrible, by fierce, by dreadful ones)

(adjective)

Instrumental, masculine, plural of raudra

raudra - terrible, fierce, dreadful, cruel, belonging to Rudra/Shiva

व्यालैः (vyālaiḥ) - by wild animals, by snakes

(noun)

Instrumental, masculine, plural of vyāla

vyāla - wild animal, beast of prey, serpent, snake

इव (iva) - like, as, as if

(indeclinable)

वनानिलः (vanānilaḥ) - the life-force or vital energy of a person (forest wind, vital energy, life-force)

(noun)

Nominative, masculine, singular of vanānila

vanānila - forest wind, vital air, breath

Compound type : Ṣaṣṭhī-tatpuruṣa (vana+anila)

• vana – forest, wood, water
  noun (neuter)
• anila – wind, air, vital breath, life-force
  noun (masculine)