योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-75, verse-13

तपन्तं द्वादशादित्यगणं दिक्षु दशस्वपि ।
बृहत्तत्र सतारावज्वालेव भगणं चलम् ॥ १३ ॥

tapantaṃ dvādaśādityagaṇaṃ dikṣu daśasvapi ,
bṛhattatra satārāvajvāleva bhagaṇaṃ calam 13

13. tapantam dvādaśādityagaṇam dikṣu daśasu api
bṛhat tatra satārāvat jvālā iva bhagaṇam calam

13. tatra (aham apaśyam) dvādaśādityagaṇam dikṣu daśasu
api tapantam bṛhat satārāvat jvālā iva calam bhagaṇam

13. There, I saw the group of twelve Adityas intensely scorching in all ten directions. I also saw the vast, moving celestial sphere, ablaze like a flame and filled with stars.

Words meanings summery:

• तपन्तम् (tapantam) - heating, scorching, burning

• द्वादशादित्यगणम् (dvādaśādityagaṇam) - the group of twelve Adityas (sun-gods)

• दिक्षु (dikṣu) - in the directions

• दशसु (daśasu) - in the ten

• अपि (api) - emphasizing 'all ten directions' (even, also, too, throughout)

• बृहत् (bṛhat) - vast, immense, great, large

• तत्र (tatra) - there, in that place

• सतारावत् (satārāvat) - star-filled, having stars

• ज्वाला (jvālā) - flame, blaze

• इव (iva) - like, as if, as

• भगणम् (bhagaṇam) - celestial sphere, constellation, group of stars

• चलम् (calam) - moving, unsteady, shaking

Words meanings and morphology

तपन्तम् (tapantam) - heating, scorching, burning

(adjective)

Accusative, masculine, singular of tapant

tapant - heating, scorching, burning (present active participle)

Present Active Participle

Derived from root tap (to heat, burn) + śatṛ suffix

Root: tap (class 1)

द्वादशादित्यगणम् (dvādaśādityagaṇam) - the group of twelve Adityas (sun-gods)

(noun)

Accusative, masculine, singular of dvādaśādityagaṇa

dvādaśādityagaṇa - the group of twelve Adityas

Compound type : tatpuruṣa (dvādaśa+āditya+gaṇa)

• dvādaśa – twelve
  numeral
• āditya – son of Aditi, a deity, particularly a sun-god
  noun (masculine)
• gaṇa – group, host, multitude, collection
  noun (masculine)

दिक्षु (dikṣu) - in the directions

(noun)

Locative, feminine, plural of diś

diś - direction, quarter of the sky, region

दशसु (daśasu) - in the ten

(adjective)

Locative, feminine, plural of daśan

daśan - ten

Note: Declined as an adjective agreeing with 'dikṣu'.

अपि (api) - emphasizing 'all ten directions' (even, also, too, throughout)

(indeclinable)

बृहत् (bṛhat) - vast, immense, great, large

(adjective)

Accusative, neuter, singular of bṛhat

bṛhat - vast, immense, great, large, high

तत्र (tatra) - there, in that place

(indeclinable)

सतारावत् (satārāvat) - star-filled, having stars

(adjective)

Accusative, neuter, singular of satārāvat

satārāvat - star-filled, having stars, stellar

Compound type : bahuvrīhi (sa+tārā+vat)

• sa – with, together with, possessing
  prefix
• tārā – star, planet
  noun (feminine)
• vat – like, as if, having
  suffix
  suffix forming adjectives/adverbs of comparison

ज्वाला (jvālā) - flame, blaze

(noun)

Nominative, feminine, singular of jvālā

jvālā - flame, blaze, glow

इव (iva) - like, as if, as

(indeclinable)

भगणम् (bhagaṇam) - celestial sphere, constellation, group of stars

(noun)

Accusative, neuter, singular of bhagaṇa

bhagaṇa - celestial sphere, constellation, group of stars

Compound type : tatpuruṣa (bha+gaṇa)

• bha – star, planet
  noun (neuter)
• gaṇa – group, host, multitude, collection
  noun (masculine)

चलम् (calam) - moving, unsteady, shaking

(adjective)

Accusative, neuter, singular of cala

cala - moving, unsteady, shaking, transient

Root: cal (class 1)