वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-7, chapter-33, verse-17

पुलस्त्याज्ञां स गृह्याथ अकिंचनवचो ऽर्जुनः ।
मुमोच पार्थिवेन्द्रेन्द्रो राक्षसेन्द्रं प्रहृष्टवत् ॥१७॥

17. pulastyājñāṃ sa gṛhyātha akiṃcanavaco'rjunaḥ ,
mumoca pārthivendrendro rākṣasendraṃ prahṛṣṭavat.

17. pulastya ājñām saḥ gṛhya atha akiñcana vacaḥ arjunaḥ
mumoca pārthivendra-indraḥ rākṣasendra-m prahṛṣṭavat

17. atha saḥ arjunaḥ pārthivendra-indraḥ pulastya ājñām
akiñcana vacaḥ gṛhya prahṛṣṭavat rākṣasendra-m mumoca

17. Then, Arjuna (Kārtavīrya), the lord among kings, having received Pulastya's command and the plea of the helpless one, joyfully released the king of rākṣasas (Rāvaṇa).

Words meanings summery:

• पुलस्त्य (pulastya) - Pulastya (Pulastya (name of a Vedic sage))

• आज्ञाम् (ājñām) - command (command, order, permission)

• सः (saḥ) - he (Arjuna) (he, that)

• गृह्य (gṛhya) - having received (having taken, having seized, having received)

• अथ (atha) - then (then, now, thereupon)

• अकिञ्चन (akiñcana) - helpless (referring to Rāvaṇa's state as a captive) (having nothing, poor, helpless, humble)

• वचः (vacaḥ) - plea, words (word, speech, statement)

• अर्जुनः (arjunaḥ) - Kārtavīrya Arjuna (Arjuna (name))

• मुमोच (mumoca) - released (released, let go)

• पार्थिवेन्द्र-इन्द्रः (pārthivendra-indraḥ) - lord among kings (king of kings, chief among kings, lord of earthly rulers)

• राक्षसेन्द्र-म् (rākṣasendra-m) - king of rākṣasas (Rāvaṇa) (king of rākṣasas, lord of demons)

• प्रहृष्टवत् (prahṛṣṭavat) - joyfully (joyfully, gladly, like one who is very pleased)

Words meanings and morphology

पुलस्त्य (pulastya) - Pulastya (Pulastya (name of a Vedic sage))

(proper noun)

masculine, singular of pulastya

pulastya - Pulastya (a Prajāpati, father of Viśravas and grandfather of Rāvaṇa)

Note: Used as the first part of a compound or implying a genitive relation.

आज्ञाम् (ājñām) - command (command, order, permission)

(noun)

Accusative, feminine, singular of ājñā

ājñā - command, order, permission, authority

from prefix ā- and root √jñā (to know)

Prefix: ā

Root: jñā (class 9)

सः (saḥ) - he (Arjuna) (he, that)

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

Note: Refers to Arjuna.

गृह्य (gṛhya) - having received (having taken, having seized, having received)

(indeclinable)

absolutive (gerund)

from root √grah (to seize, take)

Root: grah (class 9)

अथ (atha) - then (then, now, thereupon)

(indeclinable)

अकिञ्चन (akiñcana) - helpless (referring to Rāvaṇa's state as a captive) (having nothing, poor, helpless, humble)

(adjective)

masculine, singular of akiñcana

akiñcana - having nothing, poor, helpless, humble

compound with 'a' (negation) and 'kiñcana' (anything)

Compound type : bahuvrihi (a+kiñcana)

• a – not, non-
  prefix/indeclinable
  negative particle
• kiñcana – anything, something, a little
  pronoun/indeclinable

Note: Functions as a modifier for vacaḥ, implying 'words of one who is helpless.'

वचः (vacaḥ) - plea, words (word, speech, statement)

(noun)

Accusative, neuter, singular of vacas

vacas - word, speech, statement, voice

from root √vac (to speak)

Root: vac (class 2)

Note: Refers to Rāvaṇa's words or plea for release.

अर्जुनः (arjunaḥ) - Kārtavīrya Arjuna (Arjuna (name))

(proper noun)

Nominative, masculine, singular of arjuna

arjuna - Arjuna (name of a hero, or white)

मुमोच (mumoca) - released (released, let go)

(verb)

3rd person , singular, active, perfect (liṭ) of muc

perfect

from root √muc (to release)

Root: muc (class 6)

पार्थिवेन्द्र-इन्द्रः (pārthivendra-indraḥ) - lord among kings (king of kings, chief among kings, lord of earthly rulers)

(noun)

Nominative, masculine, singular of pārthivendrendra

pārthivendrendra - king of kings, chief among kings

tatpurusha compound

Compound type : tatpurusha (pārthivendra+indra)

• pārthivendra – chief of kings, powerful king
  compound (masculine)
  compound of pārthiva + indra
• indra – chief, lord, Indra
  noun (masculine)

Note: Epithet for Arjuna.

राक्षसेन्द्र-म् (rākṣasendra-m) - king of rākṣasas (Rāvaṇa) (king of rākṣasas, lord of demons)

(noun)

Accusative, masculine, singular of rākṣasendra

rākṣasendra - king of rākṣasas, lord of demons

tatpurusha compound

Compound type : tatpurusha (rākṣasa+indra)

• rākṣasa – rākṣasa, demon
  noun (masculine)
• indra – chief, lord, Indra
  noun (masculine)

Note: Refers to Rāvaṇa, the object of mumoca.

प्रहृष्टवत् (prahṛṣṭavat) - joyfully (joyfully, gladly, like one who is very pleased)

(indeclinable)

formed with the suffix '-vat' (like, resembling) from prahṛṣṭa (greatly pleased)

Prefix: pra

Root: hṛṣ (class 4)