वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-2, chapter-79, verse-17

अन्तर्दाहेन दहनः संतापयति राघवम् ।
वनदाहाभिसंतप्तं गूढो ऽग्निरिव पादपम् ॥१७॥

17. antardāhena dahanaḥ saṃtāpayati rāghavam ,
vanadāhābhisaṃtaptaṃ gūḍho'gniriva pādapam.

17. antar-dāhena dahanaḥ saṃtāpayati rāghavam
vana-dāhābhisaṃtaptaṃ gūḍhaḥ agniḥ iva pādapam

17. dahanaḥ antar-dāhena rāghavam saṃtāpayati
gūḍhaḥ agniḥ iva vana-dāhābhisaṃtaptaṃ pādapam

17. A burning anguish within torments Rāghava (Rāma), much like a hidden fire afflicts a tree already scorched by a forest fire.

Words meanings summery:

• अन्तर्-दाहेन (antar-dāhena) - by the burning anguish within (Rāma) (by internal burning, by inner torment)

• दहनः (dahanaḥ) - a burning anguish (personified as the agent) (a burner, fire, torment, anguish)

• संतापयति (saṁtāpayati) - causes great pain to (Rāghava) (torments, causes great pain, afflicts)

• राघवम् (rāghavam) - Rāma (Rāghava (descendant of Raghu), Rāma)

• वन-दाहाभिसंतप्तं (vana-dāhābhisaṁtaptaṁ) - (a tree) scorched by a forest fire (intensely tormented by forest fire, scorched by forest fire)

• गूढः (gūḍhaḥ) - hidden (hidden, concealed, secret)

• अग्निः (agniḥ) - fire

• इव (iva) - like, just as (like, as, as if)

• पादपम् (pādapam) - a tree (tree)

Words meanings and morphology

अन्तर्-दाहेन (antar-dāhena) - by the burning anguish within (Rāma) (by internal burning, by inner torment)

(noun)

Instrumental, masculine, singular of antar-dāha

antar-dāha - internal burning, inner torment, anguish

Compound type : tatpurusha (antar+dāha)

• antar – within, inside, internal
  indeclinable
• dāha – burning, combustion, torment, grief
  noun (masculine)
  From root dah (to burn)
  Root: dah (class 1)

दहनः (dahanaḥ) - a burning anguish (personified as the agent) (a burner, fire, torment, anguish)

(noun)

Nominative, masculine, singular of dahana

dahana - burning, fire, torment, anguish

From root dah (to burn)

Root: dah (class 1)

संतापयति (saṁtāpayati) - causes great pain to (Rāghava) (torments, causes great pain, afflicts)

(verb)

3rd person , singular, active, present indicative (Laṭ) of saṃtap

Causative

Formed with prefix sam and root tap (to heat, torment). The causative stem is tāpaya-.

Prefix: sam

Root: tap (class 1)

राघवम् (rāghavam) - Rāma (Rāghava (descendant of Raghu), Rāma)

(proper noun)

Accusative, masculine, singular of rāghava

rāghava - descendant of Raghu, an epithet of Rāma

वन-दाहाभिसंतप्तं (vana-dāhābhisaṁtaptaṁ) - (a tree) scorched by a forest fire (intensely tormented by forest fire, scorched by forest fire)

(adjective)

Accusative, masculine, singular of vana-dāhābhisaṃtapta

vana-dāhābhisaṁtapta - intensely tormented by forest fire

Past Passive Participle

From abhi-sam-tap (to intensely torment) + kta suffix.

Compound type : bahuvrihi (vana-dāha+abhisaṃtapta)

• vana-dāha – forest fire
  noun (masculine)
• abhisaṃtapta – intensely tormented, scorched
  adjective
  Past Passive Participle
  From abhi-sam-tap (to intensely torment).
  Prefixes: abhi+sam
  Root: tap (class 1)

Note: Qualifies pādapam.

गूढः (gūḍhaḥ) - hidden (hidden, concealed, secret)

(adjective)

Nominative, masculine, singular of gūḍha

gūḍha - hidden, concealed

Past Passive Participle

From root guh (to hide).

Root: guh (class 1)

Note: Qualifies agniḥ.

अग्निः (agniḥ) - fire

(noun)

Nominative, masculine, singular of agni

agni - fire

इव (iva) - like, just as (like, as, as if)

(indeclinable)

Note: Particle of comparison.

पादपम् (pādapam) - a tree (tree)

(noun)

Accusative, masculine, singular of pādapa

pādapa - tree (lit. 'drinking with feet/roots')

From pāda (foot/root) + pa (drinker, from pā to drink)

Note: Object of implied saṃtāpayati.