योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-141, verse-5

बृहद्भिर्घुंघुमावेगैर्वने द्विगुणिताम्बुदः ।
सूर्यैरावृत्तिभिर्व्यूढैर्विमिश्रालातचक्रकः ॥ ५ ॥

bṛhadbhirghuṃghumāvegairvane dviguṇitāmbudaḥ ,
sūryairāvṛttibhirvyūḍhairvimiśrālātacakrakaḥ 5

5. bṛhadbhiḥ ghumghumāvegaiḥ vane dviguṇitāmbudaḥ
sūryaiḥ āvṛttibhiḥ vyūḍhaiḥ vimiśrālātacarakrakaḥ

5. (saḥ mārutaḥ) vane bṛhadbhiḥ ghumghumāvegaiḥ,
dviguṇitāmbudaḥ,
sūryaiḥ āvṛttibhiḥ vyūḍhaiḥ vimiśrālātacarakrakaḥ (āyayau).

5. With mighty, booming surges, it caused the clouds in the forest to appear doubled, and it was characterized by mixed circles of firebrands, which were spread out in revolving patterns and shone like suns.

Words meanings summery:

• बृहद्भिः (bṛhadbhiḥ) - by great, by large, by mighty

• घुम्घुमावेगैः (ghumghumāvegaiḥ) - by booming surges, by roaring impulses

• वने (vane) - in the forest, in the woods

• द्विगुणिताम्बुदः (dviguṇitāmbudaḥ) - referring to the wind (having doubled clouds, making clouds appear twice as numerous)

• सूर्यैः (sūryaiḥ) - referring to the firebrands shining like suns (by suns, like suns (figurative))

• आवृत्तिभिः (āvṛttibhiḥ) - referring to the revolving patterns of firebrands (by revolutions, by turns, by circular motions, by patterns)

• व्यूढैः (vyūḍhaiḥ) - referring to the firebrands being spread out (by those spread out, by those arranged, by those extended)

• विमिश्रालातचरक्रकः (vimiśrālātacarakrakaḥ) - referring to the wind (having mixed circles of firebrands, characterized by mixed fire-wheels)

Words meanings and morphology

बृहद्भिः (bṛhadbhiḥ) - by great, by large, by mighty

(adjective)

Instrumental, masculine, plural of bṛhat

bṛhat - great, large, vast, mighty

घुम्घुमावेगैः (ghumghumāvegaiḥ) - by booming surges, by roaring impulses

(noun)

Instrumental, masculine, plural of ghumghumāvega

ghumghumāvega - booming impulse, roaring surge

Compound type : tatpurusha (ghumghuma+vega)

• ghumghuma – booming sound, rumble
  noun (masculine)
• vega – speed, force, impulse, surge
  noun (masculine)
  Root: vij (class 6)

वने (vane) - in the forest, in the woods

(noun)

Locative, neuter, singular of vana

vana - forest, wood, grove

द्विगुणिताम्बुदः (dviguṇitāmbudaḥ) - referring to the wind (having doubled clouds, making clouds appear twice as numerous)

(adjective)

Nominative, masculine, singular of dviguṇitāmbuda

dviguṇitāmbuda - whose clouds are doubled

Compound type : bahuvrihi (dviguṇita+ambuda)

• dviguṇita – doubled, multiplied by two
  adjective (masculine)
  Past Passive Participle
  From √guṇ (to multiply) with prefix dvi (two).
  Prefix: dvi
  Root: guṇ (class 10)
• ambuda – cloud (giver of water)
  noun (masculine)
  Prefix: ambhas
  Root: dā (class 1)

सूर्यैः (sūryaiḥ) - referring to the firebrands shining like suns (by suns, like suns (figurative))

(noun)

Instrumental, masculine, plural of sūrya

sūrya - sun, sun-god

Root: svar (class 1)

Note: Used here to indicate resemblance or quality ('like suns') for the firebrands.

आवृत्तिभिः (āvṛttibhiḥ) - referring to the revolving patterns of firebrands (by revolutions, by turns, by circular motions, by patterns)

(noun)

Instrumental, feminine, plural of āvṛtti

āvṛtti - revolution, turning, repetition, course, pattern

Prefix: ā

Root: vṛt (class 1)

व्यूढैः (vyūḍhaiḥ) - referring to the firebrands being spread out (by those spread out, by those arranged, by those extended)

(participle)

Instrumental, masculine, plural of vyūḍha

vyūḍha - arranged, spread out, extended, drawn up (as an army)

Past Passive Participle

From root √vah (to carry, lead) with upasarga vi. Or from √ūh (to remove, arrange). More likely from √vah in this context of being carried and spread.

Prefix: vi

Root: vah (class 1)

विमिश्रालातचरक्रकः (vimiśrālātacarakrakaḥ) - referring to the wind (having mixed circles of firebrands, characterized by mixed fire-wheels)

(adjective)

Nominative, masculine, singular of vimiśrālātacarakraka

vimiśrālātacarakraka - having mixed fire-circles

Compound type : bahuvrihi (vimiśra+alāta+cakraka)

• vimiśra – mixed, blended
  adjective (masculine)
  Prefix: vi
  Root: miśr (class 10)
• alāta – firebrand, burning stick
  noun (neuter)
• cakraka – small wheel, circle, disk
  noun (neuter)