महाभारतः mahābhārataḥ - book-6, chapter-2, verse-21

श्वेतलोहितपर्यन्ताः कृष्णग्रीवाः सविद्युतः ।
त्रिवर्णाः परिघाः संधौ भानुमावारयन्त्युत ॥२१॥

21. śvetalohitaparyantāḥ kṛṣṇagrīvāḥ savidyutaḥ ,
trivarṇāḥ parighāḥ saṁdhau bhānumāvārayantyuta.

21. śvetalohitaparyantāḥ kṛṣṇagrīvāḥ savidyutaḥ
trivarṇāḥ parighāḥ sandhau bhānum āvārayanti uta

21. uta sandhau śvetalohitaparyantāḥ kṛṣṇagrīvāḥ
savidyutaḥ trivarṇāḥ parighāḥ bhānum āvārayanti

21. Moreover, at twilight, the three-colored halos, having white and red edges, with dark centers, and accompanied by lightning, obstruct the sun.

Words meanings summery:

• श्वेतलोहितपर्यन्ताः (śvetalohitaparyantāḥ) - having white and red edges/extremities

• कृष्णग्रीवाः (kṛṣṇagrīvāḥ) - having dark centers or dark appearance (black-necked, dark-fronted)

• सविद्युतः (savidyutaḥ) - with lightning, accompanied by lightning

• त्रिवर्णाः (trivarṇāḥ) - three-colored

• परिघाः (parighāḥ) - ominous halos around the sun/moon (halos, atmospheric circles, obstructions)

• सन्धौ (sandhau) - at the period of twilight (dawn or dusk) (at the junction, at twilight)

• भानुम् (bhānum) - the sun, a ray of light

• आवारयन्ति (āvārayanti) - they obstruct, they cover, they surround

• उत (uta) - moreover, indicating an additional ominous sign. (and, moreover, indeed, also)

Words meanings and morphology

श्वेतलोहितपर्यन्ताः (śvetalohitaparyantāḥ) - having white and red edges/extremities

(adjective)

Nominative, feminine, plural of śvetalohitaparyanta

śvetalohitaparyanta - having white and red ends/borders

Those whose extremities (paryanta) are white (śveta) and red (lohita).

Compound type : bahuvrīhi (śveta+lohita+paryanta)

• śveta – white
  adjective (masculine)
• lohita – red, reddish
  adjective (masculine)
• paryanta – end, extremity, border
  noun (masculine)
  From pari + anta.
  Prefix: pari

Note: Nominative plural feminine.

कृष्णग्रीवाः (kṛṣṇagrīvāḥ) - having dark centers or dark appearance (black-necked, dark-fronted)

(adjective)

Nominative, feminine, plural of kṛṣṇagrīva

kṛṣṇagrīva - black-necked

Those whose neck (grīvā) is black (kṛṣṇa). Figuratively refers to the appearance of the halo.

Compound type : bahuvrīhi (kṛṣṇa+grīvā)

• kṛṣṇa – black, dark
  adjective (masculine)
• grīvā – neck
  noun (feminine)

Note: Nominative plural feminine.

सविद्युतः (savidyutaḥ) - with lightning, accompanied by lightning

(adjective)

Nominative, feminine, plural of savidyut

savidyut - accompanied by lightning

Saha (with) + vidyut (lightning).

Compound type : bahuvrīhi (sa+vidyut)

• sa – with, accompanied by
  indeclinable
• vidyut – lightning, electricity
  noun (feminine)
  From vidyut (to flash).
  Prefix: vi
  Root: dyut (class 1)

Note: Nominative plural feminine.

त्रिवर्णाः (trivarṇāḥ) - three-colored

(adjective)

Nominative, feminine, plural of trivarṇa

trivarṇa - three-colored, of three castes

Tri (three) + varṇa (color).

Compound type : bahuvrīhi (tri+varṇa)

• tri – three
  numeral
• varṇa – color, caste, letter
  noun (masculine)
  From vṛ (to cover, color).
  Root: vṛ (class 9)

Note: Nominative plural feminine.

परिघाः (parighāḥ) - ominous halos around the sun/moon (halos, atmospheric circles, obstructions)

(noun)

Nominative, masculine, plural of parigha

parigha - bolt, obstruction, halo, atmospheric ring

From pari + han + ḍa.

Prefix: pari

Root: han (class 2)

Note: Subject of the verb āvārayanti.

सन्धौ (sandhau) - at the period of twilight (dawn or dusk) (at the junction, at twilight)

(noun)

Locative, feminine, singular of sandhi

sandhi - junction, twilight, union, connection

From sam + dhā + ki.

Prefix: sam

Root: dhā (class 3)

Note: Indicates time.

भानुम् (bhānum) - the sun, a ray of light

(noun)

Accusative, masculine, singular of bhānu

bhānu - sun, light, ray

From bhā (to shine) + nu.

Root: bhā (class 2)

Note: Direct object of āvārayanti.

आवारयन्ति (āvārayanti) - they obstruct, they cover, they surround

(verb)

3rd person , plural, active, present indicative (laṭ) of vṛ

Present active indicative, 10th class (causative stem vāraya- from vṛ).

From ā + vṛ (10th class causative, vārayati).

Prefix: ā

Root: vṛ (class 9)

उत (uta) - moreover, indicating an additional ominous sign. (and, moreover, indeed, also)

(indeclinable)