महाभारतः mahābhārataḥ - book-7, chapter-165, verse-40

द्वौ सूर्याविति नो बुद्धिरासीत्तस्मिंस्तथा गते ।
एकाग्रमिव चासीद्धि ज्योतिर्भिः पूरितं नभः ।
समपद्यत चार्काभे भारद्वाजनिशाकरे ॥४०॥

40. dvau sūryāviti no buddhirāsīttasmiṁstathā gate ,
ekāgramiva cāsīddhi jyotirbhiḥ pūritaṁ nabhaḥ ,
samapadyata cārkābhe bhāradvājaniśākare.

40. dvau sūryau iti naḥ buddhiḥ āsīt
tasmin tathā gate ekāgram iva ca āsīt
hi jyotibhiḥ pūritam nabhaḥ samapadyata
ca arkābhe bhāradvājanīśākare

40. "There are two suns!"—such was our understanding (buddhi) when he had departed in that manner. The sky, filled with luminous beings, was indeed as if a single concentrated mass of light. And the son of Bharadvāja (Drona) became radiant like the sun and the moon.

Words meanings summery:

• द्वौ (dvau) - two

• सूर्यौ (sūryau) - two suns

• इति (iti) - thus, so, indicating direct speech or thought

• नः (naḥ) - our, to us

• बुद्धिः (buddhiḥ) - (buddhi) (intellect, understanding, discernment)

• आसीत् (āsīt) - was, existed

• तस्मिन् (tasmin) - in him, in that

• तथा (tathā) - thus, so

• गते (gate) - having gone, departed

• एकाग्रम् (ekāgram) - concentrated, focused on one point

• इव (iva) - as if, like

• च (ca) - and, also

• आसीत् (āsīt) - was, existed

• हि (hi) - indeed, surely

• ज्योतिभिः (jyotibhiḥ) - by lights, with lights

• पूरितम् (pūritam) - filled, full

• नभः (nabhaḥ) - sky, atmosphere

• समपद्यत (samapadyata) - became, happened, occurred

• च (ca) - and, also

• अर्काभे (arkābhe) - sun-like, resembling the sun

• भारद्वाजनीशाकरे (bhāradvājanīśākare) - in Drona, the son of Bharadvāja, who is like the moon (in Bharadvaja's moon (son of Bharadvaja, the moon), or Drona, who is like the moon)

Words meanings and morphology

द्वौ (dvau) - two

(numeral)

सूर्यौ (sūryau) - two suns

(noun)

Nominative, masculine, dual of sūrya

sūrya - sun

इति (iti) - thus, so, indicating direct speech or thought

(indeclinable)

नः (naḥ) - our, to us

(pronoun)

Genitive, plural of asmad

asmad - I, we

बुद्धिः (buddhiḥ) - (buddhi) (intellect, understanding, discernment)

(noun)

Nominative, feminine, singular of buddhi

buddhi - intellect, understanding, discernment, perception

आसीत् (āsīt) - was, existed

(verb)

3rd person , singular, active, Past Imperfect (laṅ) of as

Root: as (class 2)

तस्मिन् (tasmin) - in him, in that

(pronoun)

Locative, masculine, singular of tad

tad - that, he, it

तथा (tathā) - thus, so

(indeclinable)

गते (gate) - having gone, departed

(adjective)

Locative, masculine, singular of gata

gata - gone, departed, reached

Past Passive Participle

Root: gam (class 1)

एकाग्रम् (ekāgram) - concentrated, focused on one point

(adjective)

Nominative, neuter, singular of ekāgra

ekāgra - concentrated, focused on one point, intent

Compound type : Tatpurusha (eka+agra)

• eka – one, single
  numeral
• agra – tip, front, point
  noun (neuter)

इव (iva) - as if, like

(indeclinable)

च (ca) - and, also

(indeclinable)

आसीत् (āsīt) - was, existed

(verb)

3rd person , singular, active, Past Imperfect (laṅ) of as

Root: as (class 2)

हि (hi) - indeed, surely

(indeclinable)

ज्योतिभिः (jyotibhiḥ) - by lights, with lights

(noun)

Instrumental, neuter, plural of jyotis

jyotis - light, luster, radiance, celestial body

पूरितम् (pūritam) - filled, full

(adjective)

Nominative, neuter, singular of pūrita

pūrita - filled, full, completed

Past Passive Participle

Root: pṛ (class 3)

नभः (nabhaḥ) - sky, atmosphere

(noun)

Nominative, neuter, singular of nabhas

nabhas - sky, atmosphere, cloud

समपद्यत (samapadyata) - became, happened, occurred

(verb)

3rd person , singular, middle, Past Imperfect (laṅ) of sampad

Prefix: sam

Root: pad (class 4)

च (ca) - and, also

(indeclinable)

अर्काभे (arkābhe) - sun-like, resembling the sun

(adjective)

Locative, masculine, singular of arkābha

arkābha - sun-like, resembling the sun

Compound type : Bahuvrihi (arka+ābha)

• arka – sun
  noun (masculine)
• ābha – lustrous, shining
  adjective

Note: adjective, locative singular, agreeing with bhāradvājanīśākare

भारद्वाजनीशाकरे (bhāradvājanīśākare) - in Drona, the son of Bharadvāja, who is like the moon (in Bharadvaja's moon (son of Bharadvaja, the moon), or Drona, who is like the moon)

(noun)

Locative, masculine, singular of bhāradvājanīśākara

bhāradvājanīśākara - son of Bharadvāja (Drona), a moon (a radiant one)

Compound type : Tatpurusha (bhāradvāja+niśākara)

• bhāradvāja – descendant of Bharadvāja, Drona
  proper noun (masculine)
• niśākara – moon (lit. night-maker)
  noun (masculine)