वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-1, chapter-47, verse-3

पद्मपत्रविशालाक्षौ खड्गतूणीधनुर्धरौ ।
अश्विनाविव रूपेण समुपस्थितयौवनौ ॥३॥

3. padmapatraviśālākṣau khaḍgatūṇīdhanurdharau ,
aśvināviva rūpeṇa samupasthitayauvanau.

3. padmapatraviśālākṣau khaḍgatūṇīdhanurdharau
aśvinau iva rūpeṇa samupasthitayauvanau

3. (tau kumārau) padmapatraviśālākṣau,
khaḍgatūṇīdhanurdharau,
rūpeṇa aśvinau iva,
samupasthitayauvanau (ca sthaḥ)

3. ...with wide eyes like lotus leaves, carrying swords, quivers, and bows, resembling the two Ashvins in their appearance, and having just reached the prime of their youth.

Words meanings summery:

• पद्मपत्रविशालाक्षौ (padmapatraviśālākṣau) - Describes the two youths. (having wide eyes like lotus leaves)

• खड्गतूणीधनुर्धरौ (khaḍgatūṇīdhanurdharau) - Describes the two youths. (bearing swords, quivers, and bows)

• अश्विनौ (aśvinau) - Mythological divine twins known for beauty and youth, used for comparison. (the two Ashvins (divine twins))

• इव (iva) - like, as, as it were

• रूपेण (rūpeṇa) - in form, in appearance, by means of form/beauty

• समुपस्थितयौवनौ (samupasthitayauvanau) - Describes the two youths. (having arrived at youth, fully youthful)

Words meanings and morphology

पद्मपत्रविशालाक्षौ (padmapatraviśālākṣau) - Describes the two youths. (having wide eyes like lotus leaves)

(adjective)

Nominative, masculine, dual of padmapatraviśālākṣa

padmapatraviśālākṣa - having wide eyes like lotus leaves

Compound.

Compound type : bahuvrīhi (padma+patra+viśāla+akṣa)

• padma – lotus
  noun (neuter)
• patra – leaf, feather
  noun (neuter)
• viśāla – wide, broad, extensive, great
  adjective
• akṣa – eye
  noun (masculine)

Note: Adjective modifying 'kumārau'.

खड्गतूणीधनुर्धरौ (khaḍgatūṇīdhanurdharau) - Describes the two youths. (bearing swords, quivers, and bows)

(adjective)

Nominative, masculine, dual of khaḍgatūṇīdhanurdhara

khaḍgatūṇīdhanurdhara - bearing swords, quivers, and bows; armed with a sword, quiver, and bow

Compound.

Compound type : bahuvrīhi (khaḍga+tūṇī+dhanurdhara)

• khaḍga – sword
  noun (masculine)
• tūṇī – quiver
  noun (feminine)
• dhanurdhara – bow-bearer, archer
  noun (masculine)
  Compound: dhanus (bow) + dhara (bearer, from root DHṚ).
  Root: dhṛ (class 1)

Note: Adjective modifying 'kumārau'.

अश्विनौ (aśvinau) - Mythological divine twins known for beauty and youth, used for comparison. (the two Ashvins (divine twins))

(proper noun)

Nominative, masculine, dual of aśvin

aśvin - the Ashvins (mythological twin deities), horsemen, possessing horses

Derived from 'aśva' (horse).

Note: Used in comparison with 'iva'.

इव (iva) - like, as, as it were

(indeclinable)

Particle expressing comparison.

रूपेण (rūpeṇa) - in form, in appearance, by means of form/beauty

(noun)

Instrumental, neuter, singular of rūpa

rūpa - form, appearance, beauty, shape, nature

Note: Denotes the aspect of comparison.

समुपस्थितयौवनौ (samupasthitayauvanau) - Describes the two youths. (having arrived at youth, fully youthful)

(adjective)

Nominative, masculine, dual of samupasthitayauvana

samupasthitayauvana - having reached youth, fully youthful, in the prime of youth

Compound.

Compound type : bahuvrīhi (samupasthita+yauvana)

• samupasthita – arrived, present, approached
  adjective
  Past Passive Participle
  From root STHĀ (to stand) with upasargas sam-upa.
  Prefixes: sam+upa
  Root: sthā (class 1)
• yauvana – youth, prime of life
  noun (neuter)

Note: Adjective modifying 'kumārau'.