वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-3, chapter-46, verse-21

अवश्यं विनशिष्यन्ति सर्वे रावण राक्षसाः ।
येषां त्वं कर्कशो राजा दुर्बुद्धिरजितेन्द्रियः ॥२१॥

21. avaśyaṃ vinaśiṣyanti sarve rāvaṇa rākṣasāḥ ,
yeṣāṃ tvaṃ karkaśo rājā durbuddhirajitendriyaḥ.

21. avaśyam vinaśiṣyanti sarve rāvaṇa rākṣasāḥ yeṣām
tvam karkaśaḥ rājā durbuddhiḥ ajita-indriyaḥ

21. rāvaṇa yeṣām tvam karkaśaḥ durbuddhiḥ ajita-indriyaḥ rājā,
sarve rākṣasāḥ avaśyam vinaśiṣyanti.

21. O Rāvaṇa, all the Rākṣasas will certainly be destroyed, whose king you are—a cruel, foolish, and uncontrolled individual.

Words meanings summery:

• अवश्यम् (avaśyam) - certainly, inevitably, necessarily

• विनशिष्यन्ति (vinaśiṣyanti) - they will perish, they will be destroyed, they will disappear

• सर्वे (sarve) - all, every

• रावण (rāvaṇa) - Sītā addressing Rāvaṇa (O Rāvaṇa)

• राक्षसाः (rākṣasāḥ) - Rākṣasas, demons

• येषाम् (yeṣām) - of whom, whose

• त्वम् (tvam) - you

• कर्कशः (karkaśaḥ) - harsh, cruel, rough

• राजा (rājā) - king, ruler

• दुर्बुद्धिः (durbuddhiḥ) - foolish, ill-minded, wicked

• अजित-इन्द्रियः (ajita-indriyaḥ) - one whose senses are unconquered, lacking self-control

Words meanings and morphology

अवश्यम् (avaśyam) - certainly, inevitably, necessarily

(indeclinable)

Adverbial form of avaśya (necessary, inevitable).

विनशिष्यन्ति (vinaśiṣyanti) - they will perish, they will be destroyed, they will disappear

(verb)

3rd person , plural, active, future (lṛṭ) of vinaś

Future tense, third person plural.

From vi (apart) + naś (to perish).

Prefix: vi

Root: naś (class 4)

सर्वे (sarve) - all, every

(adjective)

Nominative, masculine, plural of sarva

sarva - all, every, whole, complete

Masculine nominative plural.

रावण (rāvaṇa) - Sītā addressing Rāvaṇa (O Rāvaṇa)

(proper noun)

Vocative, masculine, singular of rāvaṇa

rāvaṇa - Rāvaṇa (the king of Laṅkā, chief of the Rākṣasas)

Masculine vocative singular. Name derived from the root ru (to roar).

Root: ru (class 2)

राक्षसाः (rākṣasāḥ) - Rākṣasas, demons

(noun)

Nominative, masculine, plural of rākṣasa

rākṣasa - a Rākṣasa, demon, an evil spirit

Masculine nominative plural.

Note: Subject of the verb vinaśiṣyanti.

येषाम् (yeṣām) - of whom, whose

(pronoun)

Genitive, masculine, plural of yat

yat - who, which, what

Relative pronoun, masculine genitive plural.

त्वम् (tvam) - you

(pronoun)

Nominative, singular of yuṣmad

yuṣmad - you (singular)

Second person singular pronoun.

Note: Subject of the predicate adjectives and noun.

कर्कशः (karkaśaḥ) - harsh, cruel, rough

(adjective)

Nominative, masculine, singular of karkaśa

karkaśa - harsh, rough, cruel, hard, severe

Masculine nominative singular.

राजा (rājā) - king, ruler

(noun)

Nominative, masculine, singular of rājan

rājan - king, ruler, sovereign

Masculine nominative singular.

Root: rāj (class 1)

दुर्बुद्धिः (durbuddhiḥ) - foolish, ill-minded, wicked

(adjective)

Nominative, masculine, singular of durbuddhi

durbuddhi - foolish, ill-minded, wicked, having a bad intellect

Bahuvrihi compound: dur (bad) + buddhi (intellect). Masculine nominative singular.

Compound type : bahuvrihi (dur+buddhi)

• dur – bad, evil, difficult, ill-
  indeclinable
  Prefix indicating badness or difficulty.
• buddhi – intellect, understanding, mind, reason
  noun (feminine)
  From root budh (to know, understand).
  Root: budh (class 1)

अजित-इन्द्रियः (ajita-indriyaḥ) - one whose senses are unconquered, lacking self-control

(adjective)

Nominative, masculine, singular of ajita-indriya

ajita-indriya - one whose senses are unsubdued, lacking self-control

Bahuvrihi compound: ajita (unconquered) + indriya (sense organ). Masculine nominative singular.

Compound type : bahuvrihi (ajita+indriya)

• ajita – unconquered, unsurpassed, invincible
  adjective (masculine/feminine/neuter)
  Past Passive Participle
  Nañ-tatpuruṣa compound: a- (negation) + jita (conquered, PPP of root ji).
  Prefix: a
  Root: ji (class 1)
• indriya – sense organ, faculty, power
  noun (neuter)
  Refers to the five senses (sight, hearing, smell, taste, touch) and sometimes the mind.