महाभारतः mahābhārataḥ - book-4, chapter-38, verse-41

सोमः पञ्चशतं राजा तथैव वरुणः शतम् ।
पार्थः पञ्च च षष्टिं च वर्षाणि श्वेतवाहनः ॥४१॥

41. somaḥ pañcaśataṁ rājā tathaiva varuṇaḥ śatam ,
pārthaḥ pañca ca ṣaṣṭiṁ ca varṣāṇi śvetavāhanaḥ.

41. somaḥ pañcaśatam rājā tathā eva varuṇaḥ śatam
pārthaḥ pañca ca ṣaṣṭim ca varṣāṇi śvetavāhanaḥ

41. King Soma held it for five hundred (years). Likewise, Varuṇa (held it for) a hundred (years). And Pārtha (Arjuna), also known as Śvetavāhana, held it for sixty-five years.

Words meanings summery:

• सोमः (somaḥ) - Soma, the moon god

• पञ्चशतम् (pañcaśatam) - five hundred

• राजा (rājā) - king

• तथा (tathā) - so, thus, in that manner

• एव (eva) - indeed, only, just

• वरुणः (varuṇaḥ) - Varuṇa, god of cosmic order and waters

• शतम् (śatam) - a hundred

• पार्थः (pārthaḥ) - Arjuna (son of Pṛthā (Kunti), Arjuna)

• पञ्च (pañca) - five

• च (ca) - and

• षष्टिम् (ṣaṣṭim) - sixty

• च (ca) - and

• वर्षाणि (varṣāṇi) - years

• श्वेतवाहनः (śvetavāhanaḥ) - Arjuna (epithet) (one whose vehicle is white, white-vehicled)

Words meanings and morphology

सोमः (somaḥ) - Soma, the moon god

(proper noun)

Nominative, masculine, singular of soma

soma - Soma (plant, drink, or moon god)

पञ्चशतम् (pañcaśatam) - five hundred

(numeral)

Compound type : tatpuruṣa (pañcan+śata)

• pañcan – five
  numeral
• śata – hundred
  noun (neuter)

Note: Implied 'years'.

राजा (rājā) - king

(noun)

Nominative, masculine, singular of rājan

rājan - king, ruler

तथा (tathā) - so, thus, in that manner

(indeclinable)

Adverb

एव (eva) - indeed, only, just

(indeclinable)

Emphatic particle

वरुणः (varuṇaḥ) - Varuṇa, god of cosmic order and waters

(proper noun)

Nominative, masculine, singular of varuṇa

varuṇa - Varuṇa (Vedic deity), god of waters

शतम् (śatam) - a hundred

(numeral)

पार्थः (pārthaḥ) - Arjuna (son of Pṛthā (Kunti), Arjuna)

(proper noun)

Nominative, masculine, singular of pārtha

pārtha - son of Pṛthā, Arjuna

Derived from Pṛthā + aṇ suffix

पञ्च (pañca) - five

(numeral)

Note: Combined with 'ṣaṣṭiṃ' to mean sixty-five.

च (ca) - and

(indeclinable)

Conjunction

षष्टिम् (ṣaṣṭim) - sixty

(numeral)

Note: Combined with 'pañca' to mean sixty-five.

च (ca) - and

(indeclinable)

Conjunction

वर्षाणि (varṣāṇi) - years

(noun)

Accusative, neuter, plural of varṣa

varṣa - year, rain, season

Root: vṛṣ

Note: Specifies the duration for which Arjuna held the object.

श्वेतवाहनः (śvetavāhanaḥ) - Arjuna (epithet) (one whose vehicle is white, white-vehicled)

(proper noun)

Nominative, masculine, singular of śvetavāhana

śvetavāhana - one whose vehicle is white, white-vehicled

Compound type : bahuvrīhi (śveta+vāhana)

• śveta – white, bright
  adjective (masculine)
• vāhana – vehicle, steed, mount
  noun (neuter)
  From root √vah (to carry)
  Root: vah