वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-3, chapter-18, verse-12

गन्धर्वराजप्रतिमौ पार्थिवव्यञ्जनान्वितौ ।
देवौ वा मानुषौ वा तौ न तर्कयितुमुत्सहे ॥१२॥

12. gandharvarājapratimau pārthivavyañjanānvitau ,
devau vā mānuṣau vā tau na tarkayitumutsahe.

12. gandharvarājapratimau pārthivavyañjanānvitau
devau vā mānuṣau vā tau na tarkayitum utsahe

12. tau gandharvarājapratimau pārthivavyañjanānvitau
devau vā mānuṣau vā na tarkayitum utsahe

12. Resembling two kings of the Gandharvas and endowed with royal characteristics, I cannot discern whether those two are gods or humans.

Words meanings summery:

• गन्धर्वराजप्रतिमौ (gandharvarājapratimau) - two resembling Gandharva kings

• पार्थिवव्यञ्जनान्वितौ (pārthivavyañjanānvitau) - two endowed with royal marks or characteristics

• देवौ (devau) - two gods

• वा (vā) - or, either

• मानुषौ (mānuṣau) - two humans, two men

• वा (vā) - or, either

• तौ (tau) - those two

• न (na) - not, no

• तर्कयितुम् (tarkayitum) - to discern, to guess, to speculate

• उत्सहे (utsahe) - I am able, I dare, I venture

Words meanings and morphology

गन्धर्वराजप्रतिमौ (gandharvarājapratimau) - two resembling Gandharva kings

(adjective)

Nominative, masculine, dual of gandharvarājapratima

gandharvarājapratima - resembling a Gandharva king

Compound type : tatpuruṣa (gandharva+rāja+pratima)

• gandharva – Gandharva (a class of celestial beings, musicians)
  noun (masculine)
• rāja – king, ruler
  noun (masculine)
• pratima – image, likeness, resembling
  adjective (masculine)

पार्थिवव्यञ्जनान्वितौ (pārthivavyañjanānvitau) - two endowed with royal marks or characteristics

(adjective)

Nominative, masculine, dual of pārthivavyañjanānvita

pārthivavyañjanānvita - endowed with royal marks/characteristics

Compound type : tatpuruṣa (pārthiva+vyañjana+anvita)

• pārthiva – earthly, royal, pertaining to a king
  adjective (masculine)
• vyañjana – mark, sign, characteristic
  noun (neuter)
• anvita – endowed with, accompanied by, possessed of
  adjective (masculine)
  Past Passive Participle
  from an-i
  Prefix: anu
  Root: i (class 2)

देवौ (devau) - two gods

(noun)

Nominative, masculine, dual of deva

deva - god, deity; celestial being

वा (vā) - or, either

(indeclinable)

मानुषौ (mānuṣau) - two humans, two men

(adjective)

Nominative, masculine, dual of mānuṣa

mānuṣa - human, pertaining to man; a man

वा (vā) - or, either

(indeclinable)

तौ (tau) - those two

(pronoun)

Nominative, masculine, dual of tad

tad - that, those

न (na) - not, no

(indeclinable)

तर्कयितुम् (tarkayitum) - to discern, to guess, to speculate

(indeclinable)

infinitive

Infinitive of the causative/denominative verb tarkayati

Root: tark (class 10)

उत्सहे (utsahe) - I am able, I dare, I venture

(verb)

1st person , singular, middle, present indicative (laṭ) of utsah

Prefix: ut

Root: sah (class 1)