वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-6, chapter-57, verse-21

हयोत्तमसमायुक्तं सर्वायुधसमाकुलम् ।
आरुरोह रथश्रेष्ठं त्रिशिरा रावणात्मजः ॥२१॥

21. hayottamasamāyuktaṃ sarvāyudhasamākulam ,
āruroha rathaśreṣṭhaṃ triśirā rāvaṇātmajaḥ.

21. hayottamasamāyuktam sarvāyudhasamākulam
ārūroha rathasreṣṭham triśirā rāvaṇātmajaḥ

21. rāvaṇātmajaḥ triśirā hayottamasamāyuktam
sarvāyudhasamākulam rathasreṣṭham ārūroha

21. Trishira, the son of Rāvaṇa, mounted the excellent chariot, which was yoked with magnificent horses and laden with all weapons.

Words meanings summery:

• हयोत्तमसमायुक्तम् (hayottamasamāyuktam) - yoked with magnificent horses (equipped/yoked with excellent horses)

• सर्वायुधसमाकुलम् (sarvāyudhasamākulam) - laden with all weapons (filled/crowded with all weapons)

• आरूरोह (ārūroha) - mounted (mounted, ascended, rode)

• रथस्रेष्ठम् (rathasreṣṭham) - the excellent chariot (best of chariots)

• त्रिशिरा (triśirā) - Trishira (son of Rāvaṇa) (Trishira (proper name, 'three-headed'))

• रावणात्मजः (rāvaṇātmajaḥ) - son of Rāvaṇa

Words meanings and morphology

हयोत्तमसमायुक्तम् (hayottamasamāyuktam) - yoked with magnificent horses (equipped/yoked with excellent horses)

(adjective)

Accusative, masculine, singular of hayottamasamāyukta

hayottamasamāyukta - equipped/yoked with excellent horses

Past Passive Participle derivative

Compound: 'haya' (horse) + 'uttama' (excellent) + 'samāyukta' (equipped with)

Compound type : tatpuruṣa (haya+uttama+samāyukta)

• haya – horse
  noun (masculine)
• uttama – best, excellent, supreme
  adjective (masculine)
• samāyukta – equipped, joined, connected
  adjective (masculine)
  Past Passive Participle
  from 'sam' + 'ā' + root 'yuj'
  Prefixes: sam+ā
  Root: yuj (class 7)

Note: Agrees with rathasreṣṭham.

सर्वायुधसमाकुलम् (sarvāyudhasamākulam) - laden with all weapons (filled/crowded with all weapons)

(adjective)

Accusative, masculine, singular of sarvāyudhasamākula

sarvāyudhasamākula - filled/crowded with all weapons

Past Passive Participle derivative

Compound: 'sarva' (all) + 'āyudha' (weapon) + 'samākula' (filled with, crowded)

Compound type : tatpuruṣa (sarva+āyudha+samākula)

• sarva – all, every
  pronoun (masculine)
• āyudha – weapon, implement
  noun (neuter)
  Prefix: ā
• samākula – filled with, crowded, agitated
  adjective (masculine)
  Past Passive Participle
  from 'sam' + 'ā' + root 'kul'
  Prefixes: sam+ā
  Root: kul (class 10)

Note: Agrees with rathasreṣṭham.

आरूरोह (ārūroha) - mounted (mounted, ascended, rode)

(verb)

3rd person , singular, active, perfect (liṭ) of ārūh

Perfect Active

Root rūh (to grow, ascend) with upasarga 'ā'

Prefix: ā

Root: rūh (class 1)

रथस्रेष्ठम् (rathasreṣṭham) - the excellent chariot (best of chariots)

(noun)

Accusative, masculine, singular of rathasreṣṭha

rathasreṣṭha - best of chariots, excellent chariot

Compound type : tatpuruṣa (ratha+śreṣṭha)

• ratha – chariot
  noun (masculine)
• śreṣṭha – best, most excellent
  adjective (masculine)
  superlative of praśasya (excellent)

Note: Object of ārūroha.

त्रिशिरा (triśirā) - Trishira (son of Rāvaṇa) (Trishira (proper name, 'three-headed'))

(proper noun)

Nominative, masculine, singular of triśiras

triśiras - three-headed; name of a Rākṣasa

Compound type : bahuvrīhi (tri+śiras)

• tri – three
  numeral
• śiras – head
  noun (neuter)

Note: Subject of ārūroha.

रावणात्मजः (rāvaṇātmajaḥ) - son of Rāvaṇa

(proper noun)

Nominative, masculine, singular of rāvaṇātmaja

rāvaṇātmaja - son of Rāvaṇa

Compound type : tatpuruṣa (rāvaṇa+ātmaja)

• rāvaṇa – Rāvaṇa (proper name)
  proper noun (masculine)
• ātmaja – son, born of oneself
  noun (masculine)
  From ātman + ja (born)
  Root: jan (class 4)

Note: In apposition to Triśirā.