वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-1, chapter-1, verse-61

अस्त्रेणोन्मुहमात्मानं ज्ञात्वा पैतामहाद्वरात् ।
मर्षयन् राक्षसान् वीरो यन्त्रिणस्तान्यदृच्छया ॥६१॥

61. astreṇonmuhamātmānaṃ jñātvā paitāmahādvarāt ,
marṣayan rākṣasān vīro yantriṇastānyadṛcchayā.

61. astreṇa unmuham ātmānam jñātvā paitāmahāt varāt
marṣayan rākṣasān vīraḥ yantriṇaḥ tān yadṛcchayā

61. vīraḥ paitāmahāt varāt astreṇa ātmānam unmuham
jñātvā tān yantriṇaḥ rākṣasān yadṛcchayā marṣayan

61. The hero, knowing his own self (ātman) to be unharmed by the weapon due to the boon from Brahmā, voluntarily endured those Rākṣasas who were restraining him.

Words meanings summery:

• अस्त्रेण (astreṇa) - by the Brahmastra (that Meghanāda used to capture Hanumān) (by the weapon, by the missile)

• उन्मुहम् (unmuham) - unassailable, invulnerable (due to boon) (unbewildered, unaffected, free from delusion/confusion)

• आत्मानम् (ātmānam) - his own body/person (himself, the self (ātman))

• ज्ञात्वा (jñātvā) - having known, having understood

• पैतामहात् (paitāmahāt) - from Lord Brahmā (from Brahmā, from the grandfather)

• वरात् (varāt) - from the boon, from the blessing

• मर्षयन् (marṣayan) - allowing himself to be captured/restrained (enduring, tolerating, forgiving)

• राक्षसान् (rākṣasān) - the demon guards of Laṅkā (the Rākṣasas, demons)

• वीरः (vīraḥ) - Hanumān (the hero, the brave one)

• यन्त्रिणः (yantriṇaḥ) - those who were attempting to restrain him (Hanumān) (those who restrain, controllers, charioteers)

• तान् (tān) - those (Rākṣasas) (them, those)

• यदृच्छया (yadṛcchayā) - as if by chance, implying he allowed it to happen (by chance, spontaneously, voluntarily, as it happened)

Words meanings and morphology

अस्त्रेण (astreṇa) - by the Brahmastra (that Meghanāda used to capture Hanumān) (by the weapon, by the missile)

(noun)

Instrumental, neuter, singular of astra

astra - weapon, missile

Root: as (class 4)

उन्मुहम् (unmuham) - unassailable, invulnerable (due to boon) (unbewildered, unaffected, free from delusion/confusion)

(adjective)

Accusative, masculine, singular of unmuha

unmuha - unbewildered, unaffected, free from delusion, unassailable

negation of muha (bewildered)

Prefix: un

Root: muh (class 4)

Note: Agrees with ātmānam.

आत्मानम् (ātmānam) - his own body/person (himself, the self (ātman))

(noun)

Accusative, masculine, singular of ātman

ātman - self, soul, spirit, essence, body

ज्ञात्वा (jñātvā) - having known, having understood

(indeclinable)

Absolutive (gerund)

Formed with suffix -tvā

Root: jñā (class 9)

पैतामहात् (paitāmahāt) - from Lord Brahmā (from Brahmā, from the grandfather)

(adjective)

Ablative, masculine, singular of paitāmaha

paitāmaha - relating to a paternal grandfather, from Brahmā

Derived from pitāmaha (grandfather)

Note: Agrees with varāt.

वरात् (varāt) - from the boon, from the blessing

(noun)

Ablative, masculine, singular of vara

vara - boon, blessing, choice

Root: vṛ (class 9)

मर्षयन् (marṣayan) - allowing himself to be captured/restrained (enduring, tolerating, forgiving)

(adjective)

Nominative, masculine, singular of marṣayat

marṣayat - enduring, tolerating, forgiving

Present Active Participle

From root mṛṣ (to endure) with śap + śatṛ

Root: mṛṣ (class 4)

राक्षसान् (rākṣasān) - the demon guards of Laṅkā (the Rākṣasas, demons)

(noun)

Accusative, masculine, plural of rākṣasa

rākṣasa - Rākṣasa, demon

Root: rakṣ (class 1)

वीरः (vīraḥ) - Hanumān (the hero, the brave one)

(noun)

Nominative, masculine, singular of vīra

vīra - hero, brave man, warrior

Root: vīr (class 10)

यन्त्रिणः (yantriṇaḥ) - those who were attempting to restrain him (Hanumān) (those who restrain, controllers, charioteers)

(noun)

Accusative, masculine, plural of yantrin

yantrin - controller, restrainer, charioteer

Agent noun from root yam (to restrain)

Root: yam (class 1)

Note: Agrees with rākṣasān.

तान् (tān) - those (Rākṣasas) (them, those)

(pronoun)

Accusative, masculine, plural of tad

tad - that, those

Note: Refers to rākṣasān.

यदृच्छया (yadṛcchayā) - as if by chance, implying he allowed it to happen (by chance, spontaneously, voluntarily, as it happened)

(indeclinable)

Note: Often used adverbially to mean 'by chance' or 'voluntarily/as one pleased'.