वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-7, chapter-6, verse-52

राक्षसानां समुद्योगं तं तु नारायणः प्रभुः ।
देवदूतादुपश्रुत्य दध्रे युद्धे ततो मनः ॥५२॥

52. rākṣasānāṃ samudyogaṃ taṃ tu nārāyaṇaḥ prabhuḥ ,
devadūtādupaśrutya dadhre yuddhe tato manaḥ.

52. rākṣasānām samudyogam tam tu nārāyaṇaḥ prabhuḥ
devadūtāt upaśrutya dadhre yuddhe tataḥ manaḥ

52. tu prabhuḥ nārāyaṇaḥ devadūtāt rākṣasānām tam
samudyogam upaśrutya tataḥ yuddhe manaḥ dadhre

52. But the Lord Nārāyaṇa, having heard from a divine messenger about the Rākṣasas' great preparations, then resolved to engage in battle.

Words meanings summery:

• राक्षसानाम् (rākṣasānām) - of the Rākṣasas; of the demons

• समुद्योगम् (samudyogam) - great effort; preparation; endeavor

• तम् (tam) - that

• तु (tu) - but; indeed; however

• नारायणः (nārāyaṇaḥ) - Nārāyaṇa

• प्रभुः (prabhuḥ) - lord; master; mighty one

• देवदूतात् (devadūtāt) - from the divine messenger; from the envoy of the gods

• उपश्रुत्य (upaśrutya) - having heard; after hearing

• दध्रे (dadhre) - set his mind (held; placed; set (the mind))

• युद्धे (yuddhe) - in battle; in combat

• ततः (tataḥ) - then; thence; afterwards

• मनः (manaḥ) - mind; intellect; heart

Words meanings and morphology

राक्षसानाम् (rākṣasānām) - of the Rākṣasas; of the demons

(noun)

Genitive, masculine, plural of rākṣasa

rākṣasa - demon, Rākṣasa

समुद्योगम् (samudyogam) - great effort; preparation; endeavor

(noun)

Accusative, masculine, singular of samudyoga

samudyoga - great effort, preparation, endeavor

Prefixes: sam+ud

Root: yuj (class 7)

तम् (tam) - that

(pronoun)

Accusative, masculine, singular of tad

tad - that, he, she, it

Note: Refers to 'samudyogam'.

तु (tu) - but; indeed; however

(indeclinable)

नारायणः (nārāyaṇaḥ) - Nārāyaṇa

(proper noun)

Nominative, masculine, singular of nārāyaṇa

nārāyaṇa - Nārāyaṇa (a name of Viṣṇu)

प्रभुः (prabhuḥ) - lord; master; mighty one

(noun)

Nominative, masculine, singular of prabhu

prabhu - lord, master, powerful, mighty

Prefix: pra

Root: bhū (class 1)

देवदूतात् (devadūtāt) - from the divine messenger; from the envoy of the gods

(noun)

Ablative, masculine, singular of devadūta

devadūta - divine messenger, envoy of the gods

Compound type : tatpuruṣa (deva+dūta)

• deva – god, deity, divine
  noun (masculine)
• dūta – messenger, envoy
  noun (masculine)
  Root: dū

उपश्रुत्य (upaśrutya) - having heard; after hearing

(indeclinable)

absolutive

Derived from root śru with prefix upa, forming an absolutive (gerund).

Prefix: upa

Root: śru (class 5)

दध्रे (dadhre) - set his mind (held; placed; set (the mind))

(verb)

3rd person , singular, middle, perfect (lit) of dhā

Root: dhā (class 3)

युद्धे (yuddhe) - in battle; in combat

(noun)

Locative, neuter, singular of yuddha

yuddha - battle, fight, combat

Root: yudh (class 4)

ततः (tataḥ) - then; thence; afterwards

(indeclinable)

मनः (manaḥ) - mind; intellect; heart

(noun)

Accusative, neuter, singular of manas

manas - mind, intellect, heart, spirit

Root: man (class 4)