वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-7, chapter-9, verse-10

एतस्मिन्नन्तरे राम पुलस्त्यतनयो द्विजः ।
अग्निहोत्रमुपातिष्ठच्चतुर्थ इव पावकः ॥१०॥

10. etasminnantare rāma pulastyatanayo dvijaḥ ,
agnihotramupātiṣṭhaccaturtha iva pāvakaḥ.

10. etasmin antare rāma pulastyatanayaḥ dvijaḥ
agnihotram upātiṣṭhat caturthaḥ iva pāvakaḥ

10. At that moment, O Rāma, the son of Pulastya, a twice-born (dvija), began to perform the Vedic fire ritual (agnihotra), like a fourth fire.

Words meanings summery:

• एतस्मिन् (etasmin) - in this

• अन्तरे (antare) - at that moment (in the interval, in the midst, at the time)

• राम (rāma) - O Rāma

• पुलस्त्यतनयः (pulastyatanayaḥ) - son of Pulastya

• द्विजः (dvijaḥ) - a brahmin (twice-born, brahmin, bird, snake)

• अग्निहोत्रम् (agnihotram) - Vedic fire ritual (fire ritual, oblation to Agni)

• उपातिष्ठत् (upātiṣṭhat) - began to perform (performed, stood near, attended, worshipped)

• चतुर्थः (caturthaḥ) - fourth

• इव (iva) - like (like, as, as if)

• पावकः (pāvakaḥ) - fire (fire, purifier)

Words meanings and morphology

एतस्मिन् (etasmin) - in this

(pronoun)

Locative, masculine, singular of etat

etat - this, that

Note: Declined form of 'etat' (this), specifically masculine singular locative, agreeing with 'antare'.

अन्तरे (antare) - at that moment (in the interval, in the midst, at the time)

(noun)

Locative, neuter, singular of antara

antara - interval, space between, inside, time

राम (rāma) - O Rāma

(proper noun)

Vocative, masculine, singular of rāma

rāma - Rāma (a proper name), charming, pleasing

पुलस्त्यतनयः (pulastyatanayaḥ) - son of Pulastya

(noun)

Nominative, masculine, singular of pulastyatanaya

pulastyatanaya - son of Pulastya

Compound type : tatpurusha (pulastya+tanaya)

• pulastya – Pulastya (name of a sage)
  proper noun (masculine)
• tanaya – son, offspring
  noun (masculine)
  Derived from √tan 'to stretch, procreate' with suffix -aya
  Root: tan (class 8)

द्विजः (dvijaḥ) - a brahmin (twice-born, brahmin, bird, snake)

(noun)

Nominative, masculine, singular of dvija

dvija - twice-born, brahmin, member of the three upper varnas, bird, snake

From dvi (two) + ja (born)

Compound type : bahuvrihi (dvi+ja)

• dvi – two
  numeral
• ja – born, produced
  adjective
  Past Passive Participle suffix -ja
  From √jan 'to be born'
  Root: jan (class 4)

अग्निहोत्रम् (agnihotram) - Vedic fire ritual (fire ritual, oblation to Agni)

(noun)

Accusative, neuter, singular of agnihotra

agnihotra - Vedic fire ritual, oblation to Agni

Compound type : tatpurusha (agni+hotra)

• agni – fire, god of fire
  noun (masculine)
• hotra – oblation, offering, act of offering
  noun (neuter)
  From √hu 'to offer'
  Root: hu (class 3)

उपातिष्ठत् (upātiṣṭhat) - began to perform (performed, stood near, attended, worshipped)

(verb)

3rd person , singular, active, past imperfect (laṅ) of upātiṣṭhat

Imperfect 3rd person singular active of √sthā with upa + ā

Prefixes: upa+ā

Root: sthā (class 1)

चतुर्थः (caturthaḥ) - fourth

(adjective)

Nominative, masculine, singular of caturtha

caturtha - fourth

Note: Agrees with 'pāvakaḥ'.

इव (iva) - like (like, as, as if)

(indeclinable)

पावकः (pāvakaḥ) - fire (fire, purifier)

(noun)

Nominative, masculine, singular of pāvaka

pāvaka - fire, purifier, pure

From √pū 'to purify'

Root: pū (class 1)