वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-7, chapter-61, verse-7

अद्य मद्बाहुनिष्क्रान्तः शरो वज्रनिभाननः ।
प्रवेक्ष्यते ते हृदयं पद्ममंशुरिवार्कजः ॥७॥

7. adya madbāhuniṣkrāntaḥ śaro vajranibhānanaḥ ,
pravekṣyate te hṛdayaṃ padmamaṃśurivārkajaḥ.

7. adya mat-bāhu-niṣkrāntaḥ śaraḥ vajra-nibha-ānanaḥ
pravekṣyate te hṛdayam padmam aṃśuḥ iva arka-jaḥ

7. adya mat-bāhu-niṣkrāntaḥ vajra-nibha-ānanaḥ śaraḥ
te hṛdayam pravekṣyate padmam arka-jaḥ aṃśuḥ iva

7. Today, this arrow, discharged from my arm and resembling a thunderbolt, will penetrate your heart, just as a sunbeam enters a lotus.

Words meanings summery:

• अद्य (adya) - today, now

• मत्-बाहु-निष्क्रान्तः (mat-bāhu-niṣkrāntaḥ) - issued from my arm, discharged from my arm

• शरः (śaraḥ) - arrow

• वज्र-निभ-आननः (vajra-nibha-ānanaḥ) - whose face/point resembles a thunderbolt, thunderbolt-faced

• प्रवेक्ष्यते (pravekṣyate) - will enter, will penetrate

• ते (te) - your, to you

• हृदयम् (hṛdayam) - heart

• पद्मम् (padmam) - lotus

• अंशुः (aṁśuḥ) - ray of light, sunbeam (ray, beam, finger)

• इव (iva) - like, as, as if

• अर्क-जः (arka-jaḥ) - sunbeam (sun-born, son of the sun, ray of the sun)

Words meanings and morphology

अद्य (adya) - today, now

(indeclinable)

मत्-बाहु-निष्क्रान्तः (mat-bāhu-niṣkrāntaḥ) - issued from my arm, discharged from my arm

(adjective)

Nominative, masculine, singular of mat-bāhu-niṣkrānta

mat-bāhu-niṣkrānta - issued from one's arm, discharged from one's arm

Compound adjective describing `śara`. `mat` (my) + `bāhu` (arm) + `niṣkrānta` (issued forth).

Compound type : Tatpurusha (mad+bāhu+niṣkrānta)

• mad – my, mine
  pronoun
  Genitive/Dative singular of `asmad` (I)
• bāhu – arm, fore-arm
  noun (masculine)
• niṣkrānta – issued, gone out, discharged
  adjective (masculine)
  Past Passive Participle
  From root `kram` (to step, go) with `nis` (out)
  Prefix: nis
  Root: kram (class 1)

शरः (śaraḥ) - arrow

(noun)

Nominative, masculine, singular of śara

śara - arrow, reed, dart

वज्र-निभ-आननः (vajra-nibha-ānanaḥ) - whose face/point resembles a thunderbolt, thunderbolt-faced

(adjective)

Nominative, masculine, singular of vajra-nibha-ānana

vajra-nibha-ānana - resembling a thunderbolt in its face/front part

Bahuvrihi compound 'whose face is like a thunderbolt'.

Compound type : Bahuvrihi (vajra+nibha+ānana)

• vajra – thunderbolt, diamond
  noun (masculine)
• nibha – like, resembling
  adjective
• ānana – face, mouth, front part
  noun (neuter)
  Root: an (class 2)

प्रवेक्ष्यते (pravekṣyate) - will enter, will penetrate

(verb)

3rd person , singular, middle, future (ḷṛṭ) of pra-viś

Future Tense, Middle Voice

Root `viś` (6P/A) with prefix `pra`. `vekṣyate` is 3rd person singular future middle.

Prefix: pra

Root: viś (class 6)

ते (te) - your, to you

(pronoun)

Genitive, singular of tvad

tvad - you

Genitive/Dative singular of `tvad` (you)

Note: Refers to the person being addressed.

हृदयम् (hṛdayam) - heart

(noun)

Accusative, neuter, singular of hṛdaya

hṛdaya - heart, mind, essence

Note: Object of `pravekṣyate`.

पद्मम् (padmam) - lotus

(noun)

Accusative, neuter, singular of padma

padma - lotus flower

Note: Object in the simile.

अंशुः (aṁśuḥ) - ray of light, sunbeam (ray, beam, finger)

(noun)

Nominative, masculine, singular of aṃśu

aṁśu - ray of light, beam, fibre, finger

Note: Subject in the simile.

इव (iva) - like, as, as if

(indeclinable)

अर्क-जः (arka-jaḥ) - sunbeam (sun-born, son of the sun, ray of the sun)

(noun)

Nominative, masculine, singular of arka-ja

arka-ja - born from the sun, produced by the sun; a ray of the sun; the planet Saturn.

Tatpurusha compound 'born from the sun'.

Compound type : Tatpurusha (arka+ja)

• arka – sun, ray of light, crystal
  noun (masculine)
• ja – born, produced, caused by
  adjective
  From root `jan` (to be born)
  Root: jan (class 4)

Note: Qualifies `aṃśuḥ` as a 'sun's ray'.