वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-2, chapter-18, verse-12

त्वया चैव मया चैव कृत्वा वैरमनुत्तमम् ।
कस्य शक्तिः श्रियं दातुं भरतायारिशासन ॥१२॥

12. tvayā caiva mayā caiva kṛtvā vairamanuttamam ,
kasya śaktiḥ śriyaṃ dātuṃ bharatāyāriśāsana.

12. tvayā ca eva mayā ca eva kṛtvā vairam anuttamam
kasya śaktiḥ śriyam dātum bharatāya ariśāsana

12. ariśāsana tvayā ca eva mayā ca eva anuttamam
vairam kṛtvā bharatāya śriyam dātum kasya śaktiḥ

12. Indeed, after you and I have created unparalleled enmity, who possesses the power (śakti) to bestow prosperity (śrī) upon Bharata, O subduer of foes?

Words meanings summery:

• त्वया (tvayā) - by you

• च (ca) - and

• एव (eva) - indeed, only, just

• मया (mayā) - by me

• च (ca) - and

• एव (eva) - indeed, only, just

• कृत्वा (kṛtvā) - having done, having made

• वैरम् (vairam) - enmity, hostility

• अनुत्तमम् (anuttamam) - unequalled, unparalleled, supreme

• कस्य (kasya) - whose?

• शक्तिः (śaktiḥ) - power, ability, strength (śakti)

• श्रियम् (śriyam) - prosperity, glory, beauty (śrī)

• दातुम् (dātum) - to give

• भरताय (bharatāya) - to Bharata

• अरिशासन (ariśāsana) - O chastiser of enemies!, O subduer of foes!

Words meanings and morphology

त्वया (tvayā) - by you

(pronoun)

Instrumental, singular of tvam

tvam - you

Note: Second person singular pronoun.

च (ca) - and

(indeclinable)

एव (eva) - indeed, only, just

(indeclinable)

मया (mayā) - by me

(pronoun)

Instrumental, singular of aham

aham - I

Note: First person singular pronoun.

च (ca) - and

(indeclinable)

एव (eva) - indeed, only, just

(indeclinable)

कृत्वा (kṛtvā) - having done, having made

(indeclinable)

Absolutive

Derived from root kṛ with suffix -tvā.

Root: kṛ (class 8)

Note: Absolutive (gerund) form.

वैरम् (vairam) - enmity, hostility

(noun)

Accusative, neuter, singular of vaira

vaira - enmity, hostility

अनुत्तमम् (anuttamam) - unequalled, unparalleled, supreme

(adjective)

Accusative, neuter, singular of anuttama

anuttama - unequalled, unparalleled, supreme

Compound of 'an' (negative prefix) and 'uttama' (best).

Compound type : karmadhāraya (an+uttama)

• an – not, un-
  indeclinable
  Negative prefix.
• uttama – best, highest, supreme
  adjective (masculine)
  Superlative of 'ud' (up) and 'tama' (suffix).
  Prefix: ud

Note: Agrees with 'vairam'.

कस्य (kasya) - whose?

(pronoun)

Genitive, singular of kim

kim - who, what, which

Note: Interrogative pronoun.

शक्तिः (śaktiḥ) - power, ability, strength (śakti)

(noun)

Nominative, feminine, singular of śakti

śakti - power, ability, strength, energy (śakti)

Derived from root śak 'to be able'.

Root: śak (class 5)

श्रियम् (śriyam) - prosperity, glory, beauty (śrī)

(noun)

Accusative, feminine, singular of śrī

śrī - prosperity, wealth, glory, beauty, goddess Lakṣmī (śrī)

दातुम् (dātum) - to give

(indeclinable)

Infinitive

Derived from root dā with suffix -tum.

Root: dā (class 3)

भरताय (bharatāya) - to Bharata

(proper noun)

Dative, masculine, singular of bharata

bharata - Bharata (a proper name)

One who is 'borne' or 'maintained'.

Root: bhṛ (class 1)

अरिशासन (ariśāsana) - O chastiser of enemies!, O subduer of foes!

(noun)

Vocative, masculine, singular of ariśāsana

ariśāsana - chastiser of enemies, subduer of foes

Compound of 'ari' (enemy) and 'śāsana' (chastising).

Compound type : tatpuruṣa (ari+śāsana)

• ari – enemy, foe
  noun (masculine)
• śāsana – chastising, governing, ruling
  noun (neuter)
  Derived from root śās 'to rule, chastise'.
  Root: śās (class 2)

Note: Refers to Rama or Lakshmana, depending on context. Here, likely Rama as the recipient of the address.