वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-5, chapter-19, verse-21

इह शीघ्रं सुपर्वाणो ज्वलितास्या इवोरगाः ।
इषवो निपतिष्यन्ति रामलक्ष्मणलक्षणाः ॥२१॥

21. iha śīghraṃ suparvāṇo jvalitāsyā ivoragāḥ ,
iṣavo nipatiṣyanti rāmalakṣmaṇalakṣaṇāḥ.

21. iha śīghram suparvāṇaḥ jvalita āsyāḥ iva uragāḥ
| iṣavaḥ nipatiṣyanti rāmalakṣmaṇa lakṣaṇāḥ

21. iha śīghram rāmalakṣmaṇa lakṣaṇāḥ suparvāṇaḥ
iṣavaḥ nipatiṣyanti jvalita āsyāḥ uragāḥ iva

21. Here, swiftly, arrows will fall, well-shafted and marked with the names of Rama and Lakshmana, like serpents with blazing mouths.

Words meanings summery:

• इह (iha) - here, in this place, in this world

• शीघ्रम् (śīghram) - quickly, swiftly

• सुपर्वाणः (suparvāṇaḥ) - arrows with well-formed shafts (well-jointed, well-shafted, having good knots (referring to arrows))

• ज्वलित (jvalita) - blazing (mouths of serpents) (burning, blazing, inflamed)

• आस्याः (āsyāḥ) - mouths (of serpents) (mouths, faces)

• इव (iva) - like, as if, as it were

• उरगाः (uragāḥ) - serpents, snakes

• इषवः (iṣavaḥ) - arrows

• निपतिष्यन्ति (nipatiṣyanti) - they will fall down, they will descend

• रामलक्ष्मण (rāmalakṣmaṇa) - Rama and Lakshmana

• लक्षणाः (lakṣaṇāḥ) - marked with the names/insignias of Rama and Lakshmana (bearing signs, marked with, characterized by)

Words meanings and morphology

इह (iha) - here, in this place, in this world

(indeclinable)

शीघ्रम् (śīghram) - quickly, swiftly

(indeclinable)

सुपर्वाणः (suparvāṇaḥ) - arrows with well-formed shafts (well-jointed, well-shafted, having good knots (referring to arrows))

(adjective)

Nominative, masculine, plural of suparvan

suparvan - having good joints or knots; well-feathered (of arrows); a good festival

Compound type : bahuvrihi (su+parvan)

• su – good, well, excellent
  indeclinable
• parvan – knot, joint (of a reed or bamboo); section, limb; festival
  noun (neuter)

ज्वलित (jvalita) - blazing (mouths of serpents) (burning, blazing, inflamed)

(participle)

Nominative, masculine, plural of jvalita

jvalita - burning, blazing, inflamed, radiant

Past Passive Participle (used as adjective)

From the root √jval (to blaze, burn).

Root: jval (class 1)

आस्याः (āsyāḥ) - mouths (of serpents) (mouths, faces)

(noun)

Nominative, neuter, plural of āsya

āsya - mouth, face; speech, utterance

इव (iva) - like, as if, as it were

(indeclinable)

उरगाः (uragāḥ) - serpents, snakes

(noun)

Nominative, masculine, plural of uraga

uraga - serpent, snake (literally 'moving on the breast')

इषवः (iṣavaḥ) - arrows

(noun)

Nominative, masculine, plural of iṣu

iṣu - arrow; ray of light

निपतिष्यन्ति (nipatiṣyanti) - they will fall down, they will descend

(verb)

3rd person , plural, active, future (lṛṭ) of ni-√pat

Prefix: ni

Root: pat (class 1)

रामलक्ष्मण (rāmalakṣmaṇa) - Rama and Lakshmana

(proper noun)

masculine of rāmalakṣmaṇa

rāmalakṣmaṇa - Rama and Lakshmana

Compound type : dvandva (rāma+lakṣmaṇa)

• rāma – Rama
  proper noun (masculine)
• lakṣmaṇa – Lakshmana
  proper noun (masculine)

Note: Used as the first part of the compound 'rāmalakṣmaṇalakṣaṇāḥ'.

लक्षणाः (lakṣaṇāḥ) - marked with the names/insignias of Rama and Lakshmana (bearing signs, marked with, characterized by)

(adjective)

Nominative, masculine, plural of lakṣaṇa

lakṣaṇa - mark, sign, characteristic; an epithet, designation; an attribute, quality