वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-6, chapter-64, verse-21

आत्मानं मोचयित्वाथ क्षितावभ्यवपद्यत ।
हनूमानुन्ममथाशु निकुम्भं मारुतात्मजः ॥२१॥

21. ātmānaṃ mocayitvātha kṣitāvabhyavapadyata ,
hanūmānunmamathāśu nikumbhaṃ mārutātmajaḥ.

21. ātmānam mocayitvā atha kṣitau abhyavapadyata
hanūmān unmamatha āśu nikumbham māruta-ātmajaḥ

21. atha ātmānam mocayitvā hanūmān māruta-ātmajaḥ
kṣitau abhyavapadyata saḥ āśu nikumbham unmamatha

21. Having then freed himself, Hanuman (māruta-ātmaja) descended to the ground. He quickly crushed Nikumbha.

Words meanings summery:

• आत्मानम् (ātmānam) - himself (Hanuman) (self, soul, spirit)

• मोचयित्वा (mocayitvā) - having freed, having released

• अथ (atha) - then, next, thereafter

• क्षितौ (kṣitau) - on the ground, on the earth

• अभ्यवपद्यत (abhyavapadyata) - fell down, descended upon

• हनूमान् (hanūmān) - Hanuman

• उन्ममथ (unmamatha) - churned, crushed, tore apart

• आशु (āśu) - quickly, swiftly, fast

• निकुम्भम् (nikumbham) - Nikumbha

• मारुत-आत्मजः (māruta-ātmajaḥ) - Hanuman, the son of the wind god (māruta-ātmaja) (son of Maruta (wind god))

Words meanings and morphology

आत्मानम् (ātmānam) - himself (Hanuman) (self, soul, spirit)

(noun)

Accusative, masculine, singular of ātman

ātman - self, soul, spirit, essence (ātman)

Root: an (class 2)

Note: Object of mocayitvā

मोचयित्वा (mocayitvā) - having freed, having released

(indeclinable)

Absolutive (Gerund) (causative stem)

From causal stem of root muc (mocaya) with suffix tvā

Root: muc (class 6)

Note: Denotes an action completed before the main verb

अथ (atha) - then, next, thereafter

(indeclinable)

क्षितौ (kṣitau) - on the ground, on the earth

(noun)

Locative, feminine, singular of kṣiti

kṣiti - earth, ground, land

From root kṣi (to dwell)

Root: kṣi (class 1)

Note: Indicates location

अभ्यवपद्यत (abhyavapadyata) - fell down, descended upon

(verb)

3rd person , singular, middle, Imperfect (Laṅ) of abhyava-pad

Imperfect Middle

From abhi + ava + pad (to go, fall)

Prefixes: abhi+ava

Root: pad (class 4)

Note: First main verb of the verse

हनूमान् (hanūmān) - Hanuman

(proper noun)

Nominative, masculine, singular of hanūmat

hanūmat - Hanuman (proper name)

उन्ममथ (unmamatha) - churned, crushed, tore apart

(verb)

3rd person , singular, active, Perfect (Lit) of unmamatha

Perfect Active

Reduplicated perfect tense form of the root math with the prefix ud

Prefix: ud

Root: math (class 1)

Note: Second main verb of the verse

आशु (āśu) - quickly, swiftly, fast

(indeclinable)

Note: Modifies unmamatha

निकुम्भम् (nikumbham) - Nikumbha

(proper noun)

Accusative, masculine, singular of nikumbha

nikumbha - Nikumbha (proper name)

Note: Object of unmamatha

मारुत-आत्मजः (māruta-ātmajaḥ) - Hanuman, the son of the wind god (māruta-ātmaja) (son of Maruta (wind god))

(noun)

Nominative, masculine, singular of māruta-ātmaja

māruta-ātmaja - son of Maruta, son of the wind (Hanuman)

Compound of Māruta (wind god) and ātmaja (son)

Compound type : tatpuruṣa (māruta+ātmaja)

• māruta – wind, wind god (Marut), pertaining to Marut
  noun (masculine)
• ātmaja – son, born of oneself
  noun (masculine)
  From ātman (self) + ja (born)
  Root: jan (class 4)

Note: Appositive to Hanūmān, reinforcing identity