वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-7, chapter-12, verse-19

अमोघां तस्य शक्तिं च प्रददौ परमाद्भुताम् ।
परेण तपसा लब्धां जघ्निवांल् लक्ष्मणं यया ॥१९॥

19. amoghāṃ tasya śaktiṃ ca pradadau paramādbhutām ,
pareṇa tapasā labdhāṃ jaghnivāṃl lakṣmaṇaṃ yayā.

19. amoghāṃ tasya śaktiṃ ca pradadau paramādbhutām
pareṇa tapasā labdhāṃ jaghnivān lakṣmaṇaṃ yayā

19. ca tasya amoghām paramādbhutām śaktim pareṇa
tapasā labdhām pradadau yayā lakṣmaṇam jaghnivān

19. And he gave him an unfailing and supremely wonderful weapon (śakti), which had been obtained through great asceticism (tapas), and by which Lakṣmaṇa was struck down.

Words meanings summery:

• अमोघाम् (amoghām) - unfailing, infallible, unerring

• तस्य (tasya) - to Rāvaṇa (his, of him, to him)

• शक्तिम् (śaktim) - a divine weapon (śakti) (power, ability, weapon)

• च (ca) - and, also

• प्रददौ (pradadau) - he gave, he bestowed

• परमाद्भुताम् (paramādbhutām) - supremely wonderful, most amazing

• परेण (pareṇa) - by excellent, by great

• तपसा (tapasā) - by asceticism, by penance

• लब्धाम् (labdhām) - obtained, gained, acquired

• जघ्निवान् (jaghnivān) - having struck down (Lakṣmaṇa) (having struck, having killed)

• लक्ष्मणम् (lakṣmaṇam) - Lakṣmaṇa

• यया (yayā) - by which (weapon) (by which (feminine))

Words meanings and morphology

अमोघाम् (amoghām) - unfailing, infallible, unerring

(adjective)

Accusative, feminine, singular of amogha

amogha - unfailing, unerring, efficacious, productive

तस्य (tasya) - to Rāvaṇa (his, of him, to him)

(pronoun)

Genitive, masculine, singular of tad

tad - that, he, she, it

शक्तिम् (śaktim) - a divine weapon (śakti) (power, ability, weapon)

(noun)

Accusative, feminine, singular of śakti

śakti - power, strength, ability, faculty, energy, a spear or javelin (as a weapon)

Root: śak (class 5)

च (ca) - and, also

(indeclinable)

प्रददौ (pradadau) - he gave, he bestowed

(verb)

3rd person , singular, active, perfect (lit) of pradā

perfect

Perfect, 3rd person singular, active voice of pra-√dā (to give forth, bestow)

Prefix: pra

Root: dā (class 3)

परमाद्भुताम् (paramādbhutām) - supremely wonderful, most amazing

(adjective)

Accusative, feminine, singular of paramādbhuta

paramādbhuta - supremely wonderful, extremely marvellous

Compound type : tatpuruṣa (parama+adbhuta)

• parama – highest, supreme, excellent, utmost
  adjective (masculine)
• adbhuta – wonderful, astonishing, extraordinary
  adjective (neuter)

परेण (pareṇa) - by excellent, by great

(adjective)

Instrumental, neuter, singular of para

para - other, distant, supreme, excellent, ultimate

तपसा (tapasā) - by asceticism, by penance

(noun)

Instrumental, neuter, singular of tapas

tapas - asceticism, penance, heat, religious austerity

लब्धाम् (labdhām) - obtained, gained, acquired

(adjective)

Accusative, feminine, singular of labdha

labdha - obtained, gained, acquired, received

Past Passive Participle

Past Passive Participle from root √labh (to obtain)

Root: labh (class 1)

जघ्निवान् (jaghnivān) - having struck down (Lakṣmaṇa) (having struck, having killed)

(adjective)

Nominative, masculine, singular of jaghnivat

han - to strike, hit, kill, destroy

Past Active Participle

Past Active Participle (kvasu affix) from root √han (to strike, kill)

Root: han (class 2)

लक्ष्मणम् (lakṣmaṇam) - Lakṣmaṇa

(proper noun)

Accusative, masculine, singular of lakṣmaṇa

lakṣmaṇa - Lakṣmaṇa (proper name), having auspicious marks

यया (yayā) - by which (weapon) (by which (feminine))

(pronoun)

Instrumental, feminine, singular of yad

yad - which, who, what