वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-7, chapter-28, verse-25

रुद्रैर्वसुभिरादित्यैः साध्यैश्च समरुद्गणैः ।
वृतो नानाप्रहरणैर्निर्ययौ त्रिदशाधिपः ॥२५॥

25. rudrairvasubhirādityaiḥ sādhyaiśca samarudgaṇaiḥ ,
vṛto nānāpraharaṇairniryayau tridaśādhipaḥ.

25. rudraiḥ vasubhiḥ ādityaiḥ sādhyaiḥ ca samarudgaṇaiḥ
vṛtaḥ nānāpraharanaiḥ niryayau tridaśādhipaḥ

25. tridaśādhipaḥ rudraiḥ vasubhiḥ ādityaiḥ sādhyaiḥ
ca samarudgaṇaiḥ nānāpraharanaiḥ vṛtaḥ niryayau

25. The lord of the gods, surrounded by the Rudras, Vasus, Ādityas, Sādhyas, and the hosts of Maruts, and equipped with various weapons, went forth.

Words meanings summery:

• रुद्रैः (rudraiḥ) - by the Rudras

• वसुभिः (vasubhiḥ) - by the Vasus

• आदित्यैः (ādityaiḥ) - by the Ādityas

• साध्यैः (sādhyaiḥ) - by the Sādhyas

• च (ca) - and, also

• समरुद्गणैः (samarudgaṇaiḥ) - along with the hosts of Maruts

• वृतः (vṛtaḥ) - surrounded, encompassed

• नानाप्रहरनैः (nānāpraharanaiḥ) - equipped with various weapons (by various weapons)

• निर्ययौ (niryayau) - went forth, departed

• त्रिदशाधिपः (tridaśādhipaḥ) - Indra (lord of the gods, lord of the thirty (deities))

Words meanings and morphology

रुद्रैः (rudraiḥ) - by the Rudras

(proper noun)

Instrumental, masculine, plural of rudra

rudra - Rudra (a group of deities, associated with Shiva, Maruts)

Root: rud (class 2)

Note: Agent in passive construction.

वसुभिः (vasubhiḥ) - by the Vasus

(proper noun)

Instrumental, masculine, plural of vasu

vasu - Vasu (a class of deities, 'good', 'wealth')

Root: vas (class 1)

Note: Agent in passive construction.

आदित्यैः (ādityaiḥ) - by the Ādityas

(proper noun)

Instrumental, masculine, plural of āditya

āditya - Āditya (a group of deities, sons of Aditi)

from Aditi + -ya suffix

Note: Agent in passive construction.

साध्यैः (sādhyaiḥ) - by the Sādhyas

(proper noun)

Instrumental, masculine, plural of sādhya

sādhya - Sādhyas (a class of celestial beings), to be accomplished

gerundive

from root sādh (to accomplish)

Root: sādh (class 5)

Note: Agent in passive construction.

च (ca) - and, also

(indeclinable)

समरुद्गणैः (samarudgaṇaiḥ) - along with the hosts of Maruts

(adjective)

Instrumental, masculine, plural of samarudgaṇa

samarudgaṇa - accompanied by the hosts of Maruts, with the groups of Maruts

Compound type : bahuvrīhi (sa+marudgaṇa)

• sa – with, together with
  indeclinable
• marudgaṇa – host/group of Maruts (wind deities)
  noun (masculine)

वृतः (vṛtaḥ) - surrounded, encompassed

(adjective)

Nominative, masculine, singular of vṛta

vṛta - surrounded, covered, chosen, appointed

past passive participle

from root vṛ (to cover, choose)

Root: vṛ (class 5)

Note: Past Passive Participle acting as an adjective.

नानाप्रहरनैः (nānāpraharanaiḥ) - equipped with various weapons (by various weapons)

(noun)

Instrumental, neuter, plural of nānāpraharana

nānāpraharana - various weapons, diverse instruments of striking

Compound type : karmadhāraya (nānā+praharana)

• nānā – various, diverse, manifold
  indeclinable
• praharana – weapon, striking, throwing
  noun (neuter)
  from pra-hṛ (to strike)
  Prefix: pra
  Root: hṛ (class 1)

Note: Describes Indra as being 'equipped with' these weapons, or the means of being surrounded.

निर्ययौ (niryayau) - went forth, departed

(verb)

3rd person , singular, active, perfect (liṭ) of niḥ-yā

Perfect 3rd singular active

from root yā with prefix nir-

Prefix: nis

Root: yā (class 2)

त्रिदशाधिपः (tridaśādhipaḥ) - Indra (lord of the gods, lord of the thirty (deities))

(proper noun)

Nominative, masculine, singular of tridaśādhipa

tridaśādhipa - lord of the thirty (gods), lord of the immortals, Indra

Compound type : tatpuruṣa (tridaśa+adhipa)

• tridaśa – thirty (gods), god, immortal
  noun (masculine)
• adhipa – lord, ruler, master
  noun (masculine)
  from adhi + root pā (to protect)
  Prefix: adhi
  Root: pā (class 1)

Note: Subject of 'niryayau'.