वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-6, chapter-57, verse-23

त्रिभिः किरीटैस्त्रिशिराः शुशुभे स रथोत्तमे ।
हिमवानिव शैलेन्द्रस्त्रिभिः काञ्चनपर्वतैः ॥२३॥

23. tribhiḥ kirīṭaistriśirāḥ śuśubhe sa rathottame ,
himavāniva śailendrastribhiḥ kāñcanaparvataiḥ.

23. tribhiḥ kirīṭaiḥ triśirāḥ śuśubhe saḥ rathottame
himavān iva śailendraḥ tribhiḥ kāñcanaparvataiḥ

23. saḥ rathottame tribhiḥ kirīṭaiḥ triśirāḥ śuśubhe,
himavān śailendraḥ tribhiḥ kāñcanaparvataiḥ iva.

23. He shone on the excellent chariot, appearing as if three-headed with three crowns, just like the lord of mountains, Himālaya, with three golden peaks.

Words meanings summery:

• त्रिभिः (tribhiḥ) - by three, with three

• किरीटैः (kirīṭaiḥ) - by crowns, with crowns

• त्रिशिराः (triśirāḥ) - appearing as if three-headed (referring to Atikaya) (three-headed, having three heads)

• शुशुभे (śuśubhe) - shone, appeared splendid

• सः (saḥ) - Atikaya (he)

• रथोत्तमे (rathottame) - on the best chariot, in the excellent chariot

• हिमवान् (himavān) - Himālaya (the snowy mountain)

• इव (iva) - like, as, as if

• शैलेन्द्रः (śailendraḥ) - the Himālaya mountain (lord of mountains, chief of mountains)

• त्रिभिः (tribhiḥ) - by three, with three

• काञ्चनपर्वतैः (kāñcanaparvataiḥ) - by golden mountains/peaks, with golden mountains/peaks

Words meanings and morphology

त्रिभिः (tribhiḥ) - by three, with three

(numeral)

किरीटैः (kirīṭaiḥ) - by crowns, with crowns

(noun)

Instrumental, neuter, plural of kirīṭa

kirīṭa - crown, diadem

त्रिशिराः (triśirāḥ) - appearing as if three-headed (referring to Atikaya) (three-headed, having three heads)

(adjective)

Nominative, masculine, singular of triśiras

triśiras - three-headed

Compound type : bahuvrīhi (tri+śiras)

• tri – three
  numeral
• śiras – head, top
  noun (neuter)

शुशुभे (śuśubhe) - shone, appeared splendid

(verb)

3rd person , singular, middle, perfect (Lit) of śubh

Perfect middle form

Root: śubh (class 1)

सः (saḥ) - Atikaya (he)

(pronoun)

Nominative, masculine, singular of tad

tad - that, he/she/it

रथोत्तमे (rathottame) - on the best chariot, in the excellent chariot

(noun)

Locative, masculine, singular of rathottama

rathottama - best chariot, excellent chariot

Compound type : tatpuruṣa (ratha+uttama)

• ratha – chariot
  noun (masculine)
• uttama – best, highest, excellent
  adjective (masculine)

हिमवान् (himavān) - Himālaya (the snowy mountain)

(proper noun)

Nominative, masculine, singular of himavat

himavat - snowy, covered with snow, Himālaya (the mountain range)

Derived from 'hima' (snow) with 'matup' suffix (possessing)

इव (iva) - like, as, as if

(indeclinable)

शैलेन्द्रः (śailendraḥ) - the Himālaya mountain (lord of mountains, chief of mountains)

(noun)

Nominative, masculine, singular of śailendra

śailendra - lord of mountains, chief of mountains

Compound type : tatpuruṣa (śaila+indra)

• śaila – mountain, rock
  noun (masculine)
• indra – chief, lord, king
  noun (masculine)

त्रिभिः (tribhiḥ) - by three, with three

(numeral)

काञ्चनपर्वतैः (kāñcanaparvataiḥ) - by golden mountains/peaks, with golden mountains/peaks

(noun)

Instrumental, masculine, plural of kāñcanaparvata

kāñcanaparvata - golden mountain, golden peak

Compound type : karmadhāraya (kāñcana+parvata)

• kāñcana – golden, made of gold
  adjective (neuter)
• parvata – mountain, hill
  noun (masculine)