वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-5, chapter-38, verse-15

ताव् उभौ पुरुषव्याघ्रौ राजपुत्रावनिन्दितौ ।
त्वद्दर्शनकृतोत्साहौ लङ्कां भस्मीकरिष्यतः ॥१५॥

15. tāv ubhau puruṣavyāghrau rājaputrāvaninditau ,
tvaddarśanakṛtotsāhau laṅkāṃ bhasmīkariṣyataḥ.

15. tau ubhau puruṣavyāghrau rājaputrau aninditau
tvaddarśanakṛtotsāhau laṅkām bhasmīkariṣyataḥ

15. tau ubhau aninditau puruṣavyāghrau rājaputrau
tvaddarśanakṛtotsāhau laṅkām bhasmīkariṣyataḥ

15. Those two irreproachable princes, who are like tigers among men, their enthusiasm now stirred by seeing you, will reduce Lanka to ashes.

Words meanings summery:

• तौ (tau) - those two

• उभौ (ubhau) - both

• पुरुषव्याघ्रौ (puruṣavyāghrau) - tigers among men, best of men

• राजपुत्रौ (rājaputrau) - princes, sons of a king

• अनिन्दितौ (aninditau) - blameless, irreproachable

• त्वद्दर्शनकृतोत्साहौ (tvaddarśanakṛtotsāhau) - whose enthusiasm has been created by seeing you

• लङ्काम् (laṅkām) - Lanka

• भस्मीकरिष्यतः (bhasmīkariṣyataḥ) - will turn to ashes, will incinerate

Words meanings and morphology

तौ (tau) - those two

(pronoun)

Nominative, masculine, dual of tad

tad - that, those

उभौ (ubhau) - both

(pronoun)

Nominative, masculine, dual of ubha

ubha - both

पुरुषव्याघ्रौ (puruṣavyāghrau) - tigers among men, best of men

(noun)

Nominative, masculine, dual of puruṣavyāghra

puruṣavyāghra - man-tiger, best among men

Metaphorical compound, implying 'best of men'.

Compound type : tatpuruṣa (puruṣa+vyāghra)

• puruṣa – man, person, cosmic person (puruṣa)
  noun (masculine)
• vyāghra – tiger
  noun (masculine)

राजपुत्रौ (rājaputrau) - princes, sons of a king

(noun)

Nominative, masculine, dual of rājaputra

rājaputra - son of a king, prince

Compound type : ṣaṣṭhī-tatpuruṣa (rājan+putra)

• rājan – king
  noun (masculine)
• putra – son
  noun (masculine)

अनिन्दितौ (aninditau) - blameless, irreproachable

(adjective)

Nominative, masculine, dual of anindita

anindita - unblamed, irreproachable, faultless

Past Passive Participle

Derived from root √nind (to blame) with prefix 'a-' (negation) and suffix '-ita'.

Compound type : nañ-tatpuruṣa (a+nindita)

• a – not, un-
  indeclinable
  negating prefix
• nindita – blamed, censured
  adjective (masculine)
  Past Passive Participle
  from √nind
  Root: nind (class 1)

त्वद्दर्शनकृतोत्साहौ (tvaddarśanakṛtotsāhau) - whose enthusiasm has been created by seeing you

(adjective)

Nominative, masculine, dual of tvaddarśanakṛtotsāha

tvaddarśanakṛtotsāha - whose enthusiasm is made by seeing you

Bahuvrīhi compound, meaning 'having enthusiasm created by seeing you'.

Compound type : bahuvrīhi (tvad+darśana+kṛta+utsāha)

• tvad – you (stem for compounds)
  pronoun
  Stem of 'tvam' (you) in compound.
• darśana – seeing, sight, vision
  noun (neuter)
  From √dṛś (to see)
  Root: dṛś (class 1)
• kṛta – made, done, created
  adjective
  Past Passive Participle
  From √kṛ (to do, make)
  Root: kṛ (class 8)
• utsāha – enthusiasm, energy, zeal
  noun (masculine)
  From ut-√sah
  Prefix: ut
  Root: sah (class 1)

लङ्काम् (laṅkām) - Lanka

(proper noun)

Accusative, feminine, singular of laṅkā

laṅkā - Lanka (proper noun)

भस्मीकरिष्यतः (bhasmīkariṣyataḥ) - will turn to ashes, will incinerate

(verb)

3rd person , dual, active, future (lṛṭ) of bhasmīkṛ

Denominative verb formed from 'bhasman' (ash) and √kṛ (to make).

Root: kṛ (class 8)