महाभारतः mahābhārataḥ - book-6, chapter-3, verse-24

ग्रहौ ताम्रारुणशिखौ प्रज्वलन्ताविव स्थितौ ।
सप्तर्षीणामुदाराणां समवच्छाद्य वै प्रभाम् ॥२४॥

24. grahau tāmrāruṇaśikhau prajvalantāviva sthitau ,
saptarṣīṇāmudārāṇāṁ samavacchādya vai prabhām.

24. grahau tāmraruṇaśikhau prajvalantau iva sthitau
saptarṣīṇām udārāṇām samavacchādya vai prabhām

24. tāmraruṇaśikhau prajvalantau iva sthitau grahau
udārāṇām saptarṣīṇām prabhām vai samavacchādya

24. Two planets, appearing as if blazing with coppery-red flames, stood, indeed completely obscuring the splendor of the noble (saptarṣi) Seven Sages.

Words meanings summery:

• ग्रहौ (grahau) - two planets

• ताम्ररुणशिखौ (tāmraruṇaśikhau) - with coppery-red flames/crests

• प्रज्वलन्तौ (prajvalantau) - blazing, burning intensely

• इव (iva) - like, as if

• स्थितौ (sthitau) - situated, standing

• सप्तर्षीणाम् (saptarṣīṇām) - of the Seven Sages (saptarṣi)

• उदाराणाम् (udārāṇām) - of the noble, of the exalted

• समवच्छाद्य (samavacchādya) - having completely covered/obscured

• वै (vai) - indeed, surely

• प्रभाम् (prabhām) - splendor, light, brilliance

Words meanings and morphology

ग्रहौ (grahau) - two planets

(noun)

Nominative, masculine, dual of graha

graha - seizing, holding; planet; node of moon's orbit

Root: grah (class 9)

ताम्ररुणशिखौ (tāmraruṇaśikhau) - with coppery-red flames/crests

(adjective)

Nominative, masculine, dual of tāmraruṇaśikha

tāmraruṇaśikha - having coppery-red flames or crests

Compound type : bahuvrīhi (tāmra+aruṇa+śikhā)

• tāmra – copper-colored, coppery; copper
  adjective (masculine)
• aruṇa – red, reddish, tawny; dawn
  adjective (masculine)
• śikhā – flame, peak, crest, tuft of hair
  noun (feminine)

प्रज्वलन्तौ (prajvalantau) - blazing, burning intensely

(adjective)

Nominative, masculine, dual of prajvalant

prajvalant - blazing, burning fiercely

Present Active Participle

Derived from root jval with prefix pra

Prefix: pra

Root: jval (class 1)

इव (iva) - like, as if

(indeclinable)

स्थितौ (sthitau) - situated, standing

(adjective)

Nominative, masculine, dual of sthita

sthita - standing, situated, firm, existing

Past Passive Participle

Derived from root sthā

Root: sthā (class 1)

सप्तर्षीणाम् (saptarṣīṇām) - of the Seven Sages (saptarṣi)

(noun)

Genitive, masculine, plural of saptarṣi

saptarṣi - the seven sages (a group of mythical sages), Ursa Major

Compound type : dvigu (sapta+ṛṣi)

• sapta – seven
  numeral
• ṛṣi – sage, seer
  noun (masculine)

उदाराणाम् (udārāṇām) - of the noble, of the exalted

(adjective)

Genitive, masculine, plural of udāra

udāra - noble, exalted, generous, liberal

समवच्छाद्य (samavacchādya) - having completely covered/obscured

(indeclinable)

absolutive (gerund)

Derived from root chad with prefixes sam and ava

Prefixes: sam+ava

Root: chad (class 1)

वै (vai) - indeed, surely

(indeclinable)

प्रभाम् (prabhām) - splendor, light, brilliance

(noun)

Accusative, feminine, singular of prabhā

prabhā - light, splendor, brilliance, radiance

Root: bhā (class 2)