वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-7, chapter-27, verse-4

आदित्यान् सवसून् रुद्रान् विश्वान् साध्यान्मरुद्गणान् ।
सज्जीभवत युद्धार्थं रावणस्य दुरात्मनः ॥४॥

4. ādityān savasūn rudrān viśvān sādhyānmarudgaṇān ,
sajjībhavata yuddhārthaṃ rāvaṇasya durātmanaḥ.

4. ādityān sa-vasūn rudrān viśvān sādhyān marudgaṇān
sajjībhavata yuddhārtham rāvaṇasya durātmanaḥ

4. ādityān sa-vasūn rudrān viśvān sādhyān marudgaṇān (vocative
implied) durātmanaḥ rāvaṇasya yuddhārtham sajjībhavata

4. Adityas, along with the Vasus, Rudras, Viśvas, Sadhyas, and the Marut hosts! Prepare yourselves for battle against the evil-minded Rāvaṇa.

Words meanings summery:

• आदित्यान् (ādityān) - Adityas (a class of gods)

• स-वसून् (sa-vasūn) - along with the Vasus, accompanied by the Vasus

• रुद्रान् (rudrān) - Rudras (a class of gods)

• विश्वान् (viśvān) - Viśvas (a class of gods, often 'Viśvedevas')

• साध्यान् (sādhyān) - Sadhyas (a class of gods)

• मरुद्गणान् (marudgaṇān) - hosts of Maruts

• सज्जीभवत (sajjībhavata) - become ready, prepare yourselves

• युद्धार्थम् (yuddhārtham) - for the purpose of battle, for battle

• रावणस्य (rāvaṇasya) - of Rāvaṇa

• दुरात्मनः (durātmanaḥ) - of the evil-minded Rāvaṇa (of the evil-minded one, of the wicked one)

Words meanings and morphology

आदित्यान् (ādityān) - Adityas (a class of gods)

(proper noun)

Accusative, masculine, plural of āditya

āditya - Aditya (a divine being, son of Aditi)

Note: Implied vocative or direct address, grammatically accusative.

स-वसून् (sa-vasūn) - along with the Vasus, accompanied by the Vasus

(adjective)

Accusative, masculine, plural of sa-vasu

sa-vasu - accompanied by the Vasus

Compound type : bahuvrīhi (sa+vasu)

• sa – with, accompanied by
  indeclinable
• vasu – Vasu (a class of deities)
  proper noun (masculine)

Note: Implied vocative or direct address, grammatically accusative.

रुद्रान् (rudrān) - Rudras (a class of gods)

(proper noun)

Accusative, masculine, plural of rudra

rudra - Rudra (a fierce deity, a class of gods)

Note: Implied vocative or direct address, grammatically accusative.

विश्वान् (viśvān) - Viśvas (a class of gods, often 'Viśvedevas')

(proper noun)

Accusative, masculine, plural of viśva

viśva - all, whole; also a class of deities (Viśvedevas)

Note: Implied vocative or direct address, grammatically accusative.

साध्यान् (sādhyān) - Sadhyas (a class of gods)

(proper noun)

Accusative, masculine, plural of sādhya

sādhya - Sadhyas (a class of deities)

Note: Implied vocative or direct address, grammatically accusative.

मरुद्गणान् (marudgaṇān) - hosts of Maruts

(noun)

Accusative, masculine, plural of marutgaṇa

marutgaṇa - host of Maruts

Compound type : tatpuruṣa (marut+gaṇa)

• marut – Marut (a storm deity)
  proper noun (masculine)
• gaṇa – host, troop, collection, group
  noun (masculine)

Note: Implied vocative or direct address, grammatically accusative.

सज्जीभवत (sajjībhavata) - become ready, prepare yourselves

(verb)

2nd person , plural, active, imperative (loṭ) of sajjībhū

Cvi-verb formation

Formed from 'sajja' (ready, prepared) + '√bhū' (to be, to become), with the 'ī' indicating transformation (cvi-pratyaya).

Root: bhū (class 1)

युद्धार्थम् (yuddhārtham) - for the purpose of battle, for battle

(noun)

Accusative, neuter, singular of yuddhārtha

yuddhārtha - purpose of battle, for battle

Compound type : tatpuruṣa (yuddha+artha)

• yuddha – battle, fight, war
  noun (neuter)
  Past Passive Participle used as noun
  From '√yudh' (to fight) + 'kta' (suffix).
  Root: yudh (class 4)
• artha – purpose, meaning, object, wealth
  noun (masculine)

रावणस्य (rāvaṇasya) - of Rāvaṇa

(proper noun)

Genitive, masculine, singular of rāvaṇa

rāvaṇa - Rāvaṇa (name of the demon king)

दुरात्मनः (durātmanaḥ) - of the evil-minded Rāvaṇa (of the evil-minded one, of the wicked one)

(adjective)

Genitive, masculine, singular of durātman

durātman - evil-minded, wicked, malicious; a bad soul (ātman)

Compound type : tatpuruṣa (dur+ātman)

• dur – bad, difficult, ill-
  indeclinable
• ātman – self, soul, spirit (ātman), nature
  noun (masculine)

Note: Agrees with 'rāvaṇasya'.