वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-3, chapter-38, verse-18

एवं कृत्वा त्विदं कार्यं यथेष्टं गच्छ राक्षस ।
राज्यस्यार्धं प्रदास्यामि मारीच तव सुव्रत ॥१८॥

18. evaṃ kṛtvā tvidaṃ kāryaṃ yatheṣṭaṃ gaccha rākṣasa ,
rājyasyārdhaṃ pradāsyāmi mārīca tava suvrata.

18. evam kṛtvā tu idam kāryam yatheṣṭam gaccha rākṣasa
rājyasya ardham pradāsyāmi marīca tava suvratā

18. rākṣasa! marīca! suvratā! tvam evam idam kāryam kṛtvā yatheṣṭam gaccha.
tava rājyasya ardham pradāsyāmi.

18. Having accomplished this task in this manner, go wherever you wish, O demon! O Maricha, I will give you half of my kingdom, O one of good vows!

Words meanings summery:

• एवम् (evam) - thus, in this manner

• कृत्वा (kṛtvā) - having done, having made, having accomplished

• तु (tu) - indeed, but, yet

• इदम् (idam) - this

• कार्यम् (kāryam) - task, work, duty

• यथेष्टम् (yatheṣṭam) - as desired, as wished, freely

• गच्छ (gaccha) - go (imperative)

• राक्षस (rākṣasa) - O demon!

• राज्यस्य (rājyasya) - of the kingdom

• अर्धम् (ardham) - half

• प्रदास्यामि (pradāsyāmi) - I will give

• मरीच (marīca) - O Maricha!

• तव (tava) - to you, your

• सुव्रत (suvrata) - O one of good vows/observance!

Words meanings and morphology

एवम् (evam) - thus, in this manner

(indeclinable)

Note: Adverbial.

कृत्वा (kṛtvā) - having done, having made, having accomplished

(indeclinable)

absolutive

root kṛ + tvā

Root: kṛ (class 8)

तु (tu) - indeed, but, yet

(indeclinable)

Note: Particle.

इदम् (idam) - this

(pronoun)

Accusative, neuter, singular of idam

idam - this

Note: Refers to the task.

कार्यम् (kāryam) - task, work, duty

(noun)

Accusative, neuter, singular of kārya

kārya - to be done, work, duty, task

Gerundive

root kṛ (to do) + ṇyat

Root: kṛ (class 8)

Note: Object of kṛtvā.

यथेष्टम् (yatheṣṭam) - as desired, as wished, freely

(indeclinable)

Compound type : avyayībhāva (yathā+iṣṭa)

• yathā – as, according to
  indeclinable
• iṣṭa – desired, wished, beloved
  adjective (neuter)
  Past Passive Participle
  root iṣ (to wish, desire) + kta
  Root: iṣ (class 6)

Note: Adverbial.

गच्छ (gaccha) - go (imperative)

(verb)

2nd person , singular, active, imperative (loṭ) of gam

imperative, active voice, 2nd person singular

Root: gam (class 1)

Note: Directed at Maricha.

राक्षस (rākṣasa) - O demon!

(noun)

Vocative, masculine, singular of rākṣasa

rākṣasa - demon, evil spirit

Note: Addressing Maricha.

राज्यस्य (rājyasya) - of the kingdom

(noun)

Genitive, neuter, singular of rājya

rājya - kingdom, reign, sovereignty

अर्धम् (ardham) - half

(noun)

Accusative, neuter, singular of ardha

ardha - half, portion, part

Note: Object of pradāsyāmi.

प्रदास्यामि (pradāsyāmi) - I will give

(verb)

1st person , singular, active, future indicative (lṛṭ) of pradā

future indicative, active voice, 1st person singular, with prefix pra

Prefix: pra

Root: dā (class 3)

Note: Subject is Ravana.

मरीच (marīca) - O Maricha!

(proper noun)

Vocative, masculine, singular of marīca

marīca - Maricha (proper name of a demon)

Note: Addressing Maricha.

तव (tava) - to you, your

(pronoun)

Dative, singular of tvad

tvad - you (singular)

Note: Dative (to you) for giving.

सुव्रत (suvrata) - O one of good vows/observance!

(adjective)

Vocative, masculine, singular of suvrata

suvrata - of good vows, virtuous, pious

Compound type : bahuvrīhi (su+vrata)

• su – good, well, excellent
  indeclinable
• vrata – vow, sacred observance, religious practice
  noun (neuter)

Note: Addressing Maricha.