महाभारतः mahābhārataḥ - book-7, chapter-57, verse-33

ग्रहनक्षत्रसोमानां सूर्याग्न्योश्च समत्विषम् ।
अपश्यत तदा पार्थो ज्वलन्तमिव पर्वतम् ॥३३॥

33. grahanakṣatrasomānāṁ sūryāgnyośca samatviṣam ,
apaśyata tadā pārtho jvalantamiva parvatam.

33. graha-nakṣatra-somānām sūrya-agnyoḥ ca sama-tviṣam
apaśyata tadā pārthaḥ jvalantam iva parvatam

33. tadā pārthaḥ graha-nakṣatra-somānām sūrya-agnyoḥ
ca sama-tviṣam jvalantam iva parvatam apaśyata

33. Then Arjuna (pārtha) saw something like a blazing mountain, whose radiance was equal to that of the planets, constellations, the moon, the sun, and fire.

Words meanings summery:

• ग्रह-नक्षत्र-सोमानाम् (graha-nakṣatra-somānām) - of planets, constellations, and the moon

• सूर्य-अग्न्योः (sūrya-agnyoḥ) - of the sun and fire

• च (ca) - and, also

• सम-त्विषम् (sama-tviṣam) - of equal radiance, having equal brilliance

• अपश्यत (apaśyata) - he saw, he perceived

• तदा (tadā) - then, at that time

• पार्थः (pārthaḥ) - Arjuna (son of Pṛthā)

• ज्वलन्तम् (jvalantam) - blazing, shining, burning

• इव (iva) - like, as, as if

• पर्वतम् (parvatam) - mountain, hill

Words meanings and morphology

ग्रह-नक्षत्र-सोमानाम् (graha-nakṣatra-somānām) - of planets, constellations, and the moon

(compound)

Compound type : dvandva (graha+nakṣatra+soma)

• graha – planet, celestial body, seizer
  noun (masculine)
  Root: grah (class 9)
• nakṣatra – constellation, star, lunar mansion
  noun (neuter)
• soma – moon, Soma (a divine drink/deity)
  noun (masculine)

सूर्य-अग्न्योः (sūrya-agnyoḥ) - of the sun and fire

(compound)

Compound type : dvandva (sūrya+agni)

• sūrya – sun, sun god
  noun (masculine)
• agni – fire, fire god
  noun (masculine)

च (ca) - and, also

(indeclinable)

सम-त्विषम् (sama-tviṣam) - of equal radiance, having equal brilliance

(compound)

Compound type : bahuvrīhi (sama+tviṣ)

• sama – equal, same, like
  adjective
• tviṣ – radiance, brilliance, light, splendor
  noun (feminine)
  Root: tviṣ (class 1)

अपश्यत (apaśyata) - he saw, he perceived

(verb)

3rd person , singular, active, past imperfect (laṅ) of dṛś

Root: dṛś (class 1)

Note: Can also be used in Ātmanepada, as here.

तदा (tadā) - then, at that time

(indeclinable)

पार्थः (pārthaḥ) - Arjuna (son of Pṛthā)

(proper noun)

Nominative, masculine, singular of pārtha

pārtha - Arjuna (son of Pṛthā), son of a king, a warrior

Derived from 'pṛthā' (another name for Kuntī, Arjuna's mother).

ज्वलन्तम् (jvalantam) - blazing, shining, burning

(adjective)

Accusative, masculine, singular of jvalat

jvalat - blazing, shining, burning

Present Active Participle

Derived from the root 'jval' (to burn, shine).

Root: jval (class 1)

इव (iva) - like, as, as if

(indeclinable)

पर्वतम् (parvatam) - mountain, hill

(noun)

Accusative, masculine, singular of parvata

parvata - mountain, hill, rock