महाभारतः mahābhārataḥ - book-7, chapter-6, verse-3

प्रपक्षः शकुनिस्तेषां प्रवरैर्हयसादिभिः ।
ययौ गान्धारकैः सार्धं विमलप्रासयोधिभिः ॥३॥

3. prapakṣaḥ śakunisteṣāṁ pravarairhayasādibhiḥ ,
yayau gāndhārakaiḥ sārdhaṁ vimalaprāsayodhibhiḥ.

3. prapakṣaḥ śakuniḥ teṣām pravaraiḥ hayasādibhiḥ
yayau gāndhārakaiḥ sārdham vimalaprāsayodhibhiḥ

3. śakuniḥ teṣām prapakṣaḥ,
pravaraiḥ hayasādibhiḥ vimalaprāsayodhibhiḥ gāndhārakaiḥ sārdham yayau

3. Shakuni, as their leading supporter, advanced along with the Gandharans, who were excellent horsemen and fought with shining spears.

Words meanings summery:

• प्रपक्षः (prapakṣaḥ) - leading supporter (supporter, leader, chief of a party)

• शकुनिः (śakuniḥ) - Shakuni (Shakuni (proper noun, king of Gandhara))

• तेषाम् (teṣām) - of them (referring to the forces on the right flank from the previous verse) (of them, their)

• प्रवरैः (pravaraiḥ) - with the excellent (horsemen) (with the excellent, with the chief, with the best)

• हयसादिभिः (hayasādibhiḥ) - with horsemen (with horse-riders, with cavalrymen)

• ययौ (yayau) - advanced (he went, he proceeded)

• गान्धारकैः (gāndhārakaiḥ) - with the Gandharans (with the Gandharans (people from Gandhara))

• सार्धम् (sārdham) - along with (with, along with)

• विमलप्रासयोधिभिः (vimalaprāsayodhibhiḥ) - fighting with shining spears (with those fighting with shining spears)

Words meanings and morphology

प्रपक्षः (prapakṣaḥ) - leading supporter (supporter, leader, chief of a party)

(noun)

Nominative, masculine, singular of prapakṣa

prapakṣa - a leading member of a party, a supporter, one who takes the side of

Compound type : tatpurusha (pra+pakṣa)

• pra – forth, forward, pre-eminent
  indeclinable
• pakṣa – side, party, wing (of an army)
  noun (masculine)
  From root `pakṣ` (to join).
  Root: pakṣ (class 1)

Note: In apposition to Shakuni.

शकुनिः (śakuniḥ) - Shakuni (Shakuni (proper noun, king of Gandhara))

(proper noun)

Nominative, masculine, singular of śakuni

śakuni - Shakuni (a name, often the maternal uncle of Duryodhana)

तेषाम् (teṣām) - of them (referring to the forces on the right flank from the previous verse) (of them, their)

(pronoun)

Genitive, masculine, plural of tad

tad - that, those, he, she, it

प्रवरैः (pravaraiḥ) - with the excellent (horsemen) (with the excellent, with the chief, with the best)

(adjective)

Instrumental, masculine, plural of pravara

pravara - excellent, chief, best

Compound type : karmadhāraya (pra+vara)

• pra – forth, forward, pre-eminent
  indeclinable
• vara – choice, excellent, best, boon
  noun/adjective (masculine)
  From root `vṛ` (to choose).
  Root: vṛ (class 5)

Note: Agrees with `gāndhārakaiḥ`.

हयसादिभिः (hayasādibhiḥ) - with horsemen (with horse-riders, with cavalrymen)

(noun)

Instrumental, masculine, plural of hayasādi

hayasādi - horse-rider, cavalryman

Compound type : tatpurusha (haya+sādi)

• haya – horse
  noun (masculine)
  From root `hi` (to go, to send).
  Root: hi (class 5)
• sādi – rider, charioteer, one who sits
  noun (masculine)
  Agent Noun
  From root `sad` (to sit, to ride).
  Root: sad (class 1)

Note: Agrees with `gāndhārakaiḥ`.

ययौ (yayau) - advanced (he went, he proceeded)

(verb)

3rd person , singular, active, perfect (lit) of yā

Perfect Tense, Parasmaipada, 3rd Person Singular

Irregular perfect form from root `yā`.

Root: yā (class 2)

गान्धारकैः (gāndhārakaiḥ) - with the Gandharans (with the Gandharans (people from Gandhara))

(proper noun)

Instrumental, masculine, plural of gāndhāraka

gāndhāraka - a native or inhabitant of Gandhara

Derived from `gāndhāra`.

Note: Used with `sārdham`.

सार्धम् (sārdham) - along with (with, along with)

(indeclinable)

Adverbial form of `sārdha`.

विमलप्रासयोधिभिः (vimalaprāsayodhibhiḥ) - fighting with shining spears (with those fighting with shining spears)

(adjective)

Instrumental, masculine, plural of vimalaprāsayodhin

vimalaprāsayodhin - one who fights with clean/shining spears

Compound type : upapada-tatpurusha (vimala+prāsa+yodhin)

• vimala – spotless, pure, clean, shining
  adjective (neuter)
  Prefix: vi
  Root: mal
• prāsa – spear, javelin, dart
  noun (masculine)
  From root `as` (to throw) with prefix `pra`.
  Prefix: pra
  Root: as (class 4)
• yodhin – fighter, warrior
  noun (masculine)
  Agent Noun
  From root `yudh` (to fight) with suffix `-in`.
  Root: yudh (class 4)

Note: Agrees with `gāndhārakaiḥ`.