वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-7, chapter-25, verse-6

उशना त्वब्रवीत्तत्र गुरुर्यज्ञसमृद्धये ।
रावणं राक्षसश्रेष्ठं द्विजश्रेष्ठो महातपाः ॥६॥

6. uśanā tvabravīttatra gururyajñasamṛddhaye ,
rāvaṇaṃ rākṣasaśreṣṭhaṃ dvijaśreṣṭho mahātapāḥ.

6. uśanā tu abravīt tatra guruḥ yajñasamṛddhaye
rāvaṇam rākṣasaśreṣṭham dvijaśreṣṭhaḥ mahātapāḥ

6. tu tatra mahātapāḥ dvijaśreṣṭhaḥ guruḥ uśanā
rākṣasaśreṣṭham rāvaṇam yajñasamṛddhaye abravīt

6. But there, Uśanas, the preceptor of great asceticism (tapas) and the foremost among the twice-born (dvija), spoke to Rāvaṇa, the chief of rākṣasas, for the prosperity of the Vedic ritual (yajña).

Words meanings summery:

• उशना (uśanā) - Uśanas, the preceptor of the asuras (Uśanas (name of Śukra))

• तु (tu) - but, indeed, yet

• अब्रवीत् (abravīt) - he said, he spoke

• तत्र (tatra) - there, in that place

• गुरुः (guruḥ) - the preceptor (referring to Uśanas) (preceptor, teacher, heavy, venerable)

• यज्ञसमृद्धये (yajñasamṛddhaye) - for the prosperity of the Vedic ritual (yajña) (for the success/prosperity of the Vedic ritual)

• रावणम् (rāvaṇam) - Rāvaṇa

• राक्षसश्रेष्ठम् (rākṣasaśreṣṭham) - chief/foremost among rākṣasas

• द्विजश्रेष्ठः (dvijaśreṣṭhaḥ) - foremost among the twice-born (dvija) (best of the twice-born (brahmins))

• महातपाः (mahātapāḥ) - of great asceticism (tapas) (of great asceticism/penance)

Words meanings and morphology

उशना (uśanā) - Uśanas, the preceptor of the asuras (Uśanas (name of Śukra))

(proper noun)

Nominative, masculine, singular of uśanas

uśanas - Uśanas, name of the preceptor of the asuras, also called Śukra

Note: subject of abravīt

तु (tu) - but, indeed, yet

(indeclinable)

particle

अब्रवीत् (abravīt) - he said, he spoke

(verb)

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

Imperfect Active

root brū, 3rd person singular, Imperfect tense, prefixed with a-augment

Root: brū (class 2)

तत्र (tatra) - there, in that place

(indeclinable)

formed from pronominal stem tad- + -tra suffix

गुरुः (guruḥ) - the preceptor (referring to Uśanas) (preceptor, teacher, heavy, venerable)

(noun)

Nominative, masculine, singular of guru

guru - heavy, weighty, venerable, teacher, preceptor

Note: epithet for Uśanas

यज्ञसमृद्धये (yajñasamṛddhaye) - for the prosperity of the Vedic ritual (yajña) (for the success/prosperity of the Vedic ritual)

(noun)

Dative, feminine, singular of yajñasamṛddhi

yajñasamṛddhi - success/prosperity of the Vedic ritual

tatpurusha compound

Compound type : ṣaṣṭhī-tatpuruṣa (yajña+samṛddhi)

• yajña – Vedic ritual, sacrifice
  noun (masculine)
  from root yaj (to worship, sacrifice)
  Root: yaj (class 1)
• samṛddhi – prosperity, success, accomplishment
  noun (feminine)
  from sam-√ṛdh (ṛdh - to grow, prosper)
  Prefix: sam
  Root: ṛdh (class 4)

Note: purpose of speaking

रावणम् (rāvaṇam) - Rāvaṇa

(proper noun)

Accusative, masculine, singular of rāvaṇa

rāvaṇa - Rāvaṇa, name of the demon king of Laṅkā

Note: object of address for abravīt

राक्षसश्रेष्ठम् (rākṣasaśreṣṭham) - chief/foremost among rākṣasas

(adjective)

Accusative, masculine, singular of rākṣasaśreṣṭha

rākṣasaśreṣṭha - chief/foremost among rākṣasas

tatpurusha compound

Compound type : ṣaṣṭhī-tatpuruṣa (rākṣasa+śreṣṭha)

• rākṣasa – rākṣasa, demon
  noun (masculine)
• śreṣṭha – best, chief, most excellent
  adjective (masculine)
  superlative of praśasya (excellent)

Note: modifies Rāvaṇam

द्विजश्रेष्ठः (dvijaśreṣṭhaḥ) - foremost among the twice-born (dvija) (best of the twice-born (brahmins))

(noun)

Nominative, masculine, singular of dvijaśreṣṭha

dvijaśreṣṭha - best/foremost of the twice-born (brāhmaṇas)

tatpurusha compound

Compound type : ṣaṣṭhī-tatpuruṣa (dvija+śreṣṭha)

• dvija – twice-born (Brahmin, Kṣatriya, Vaiśya), bird, tooth
  noun (masculine)
  from dvi (two) + jan (to be born)
  Root: jan (class 4)
• śreṣṭha – best, chief, most excellent
  adjective (masculine)
  superlative of praśasya (excellent)

Note: epithet for Uśanas

महातपाः (mahātapāḥ) - of great asceticism (tapas) (of great asceticism/penance)

(adjective)

Nominative, masculine, singular of mahātapas

mahātapas - having great asceticism, greatly austere

bahuvrihi compound

Compound type : bahuvrīhi (mahā+tapas)

• mahā – great, large
  adjective (feminine)
• tapas – asceticism, penance, heat, religious austerity
  noun (neuter)
  from root tap (to heat, burn, suffer penance)
  Root: tap (class 1)

Note: epithet for Uśanas