महाभारतः mahābhārataḥ - book-12, chapter-337, verse-4

पितामहाद्यं प्रवदन्ति षष्ठं महर्षिमार्षेयविभूतियुक्तम् ।
नारायणस्यांशजमेकपुत्रं द्वैपायनं वेदमहानिधानम् ॥४॥

4. pitāmahādyaṁ pravadanti ṣaṣṭhaṁ; maharṣimārṣeyavibhūtiyuktam ,
nārāyaṇasyāṁśajamekaputraṁ; dvaipāyanaṁ vedamahānidhānam.

4. pitāmahādyam pravadanti ṣaṣṭham
maharṣim ārṣeyavibhūti yuktam
| nārāyaṇasya aṃśajam ekaputram
dvaipāyanam vedamahānidhānam

4. They declare Dvaipāyana, the only son, as the sixth great seer (maharṣi) in lineage starting from Brahmā, endowed with sage-like divine powers, and a partial manifestation (aṃśaja) of Nārāyaṇa, indeed a great repository of the Vedas.

Words meanings summery:

• पितामहाद्यम् (pitāmahādyam) - beginning with the grandfather, starting from Brahmā

• प्रवदन्ति (pravadanti) - they say, they declare, they call

• षष्ठम् (ṣaṣṭham) - sixth

• महर्षिम् (maharṣim) - referring to Dvaipāyana (Vyāsa) (great seer, great sage)

• आर्षेयविभूति (ārṣeyavibhūti) - sage-like divine power/glory

• युक्तम् (yuktam) - endowed with, possessed of, joined with

• नारायणस्य (nārāyaṇasya) - of Nārāyaṇa

• अंशजम् (aṁśajam) - a partial manifestation of Nārāyaṇa (born from a part, partial manifestation, descendant)

• एकपुत्रम् (ekaputram) - only son, single son

• द्वैपायनम् (dvaipāyanam) - Dvaipāyana (Vyāsa)

• वेदमहानिधानम् (vedamahānidhānam) - great treasure/repository of the Vedas

Words meanings and morphology

पितामहाद्यम् (pitāmahādyam) - beginning with the grandfather, starting from Brahmā

(adjective)

Accusative, masculine, singular of pitāmahādi

pitāmahādi - Beginning with Brahmā (the grandfather)

Compound type : tatpurusha (pitāmaha+ādi)

• pitāmaha – grandfather, Brahmā
  noun (masculine)
• ādi – beginning, et cetera, foremost
  noun (masculine)

Note: Modifies 'maharṣim'

प्रवदन्ति (pravadanti) - they say, they declare, they call

(verb)

3rd person , plural, active, present (lat) of pravad

Present Active

3rd person plural, Parasmaipada, prefixed with pra-

Prefix: pra

Root: vad (class 1)

षष्ठम् (ṣaṣṭham) - sixth

(adjective)

Accusative, masculine, singular of ṣaṣṭha

ṣaṣṭha - sixth

Ordinal number derived from ṣaṣ (six)

Note: Modifies 'maharṣim'

महर्षिम् (maharṣim) - referring to Dvaipāyana (Vyāsa) (great seer, great sage)

(noun)

Accusative, masculine, singular of maharṣi

maharṣi - great sage, eminent seer

Compound type : karmadhāraya (mahā+ṛṣi)

• mahā – great, large, mighty
  adjective
• ṛṣi – seer, sage, inspired poet
  noun (masculine)

आर्षेयविभूति (ārṣeyavibhūti) - sage-like divine power/glory

(noun)

Accusative, feminine, singular of ārṣeyavibhūti

ārṣeyavibhūti - sage-like power, divine manifestation of a sage

Compound type : tatpurusha (ārṣeya+vibhūti)

• ārṣeya – belonging to a ṛṣi (sage), sagely, divine
  adjective (masculine)
  Derived from ṛṣi (sage)
• vibhūti – power, prosperity, glory, divine manifestation
  noun (feminine)

Note: Part of the compound 'ārṣeyavibhūti yuktam'

युक्तम् (yuktam) - endowed with, possessed of, joined with

(adjective)

Accusative, masculine, singular of yukta

yukta - joined, yoked, united, endowed with, proper, fit

Past Passive Participle

Derived from root yuj (to join)

Root: yuj (class 7)

Note: Modifies 'maharṣim'

नारायणस्य (nārāyaṇasya) - of Nārāyaṇa

(proper noun)

Genitive, masculine, singular of nārāyaṇa

nārāyaṇa - A name of Viṣṇu, dwelling in the waters

अंशजम् (aṁśajam) - a partial manifestation of Nārāyaṇa (born from a part, partial manifestation, descendant)

(adjective)

Accusative, masculine, singular of aṃśaja

aṁśaja - born from a part, originating from a portion

Compound type : tatpurusha (aṃśa+ja)

• aṃśa – part, portion, share
  noun (masculine)
• ja – born, produced from
  adjective (masculine)
  Suffix indicating 'born from'
  Root: jan (class 4)

Note: Modifies 'dvaipāyanam'

एकपुत्रम् (ekaputram) - only son, single son

(noun)

Accusative, masculine, singular of ekaputra

ekaputra - only son

Compound type : tatpurusha (eka+putra)

• eka – one, single, only
  adjective
• putra – son
  noun (masculine)

Note: Modifies 'dvaipāyanam'

द्वैपायनम् (dvaipāyanam) - Dvaipāyana (Vyāsa)

(proper noun)

Accusative, masculine, singular of dvaipāyana

dvaipāyana - Name of Vyāsa, meaning 'one born on an island'

Derived from dvīpa (island)

वेदमहानिधानम् (vedamahānidhānam) - great treasure/repository of the Vedas

(noun)

Accusative, neuter, singular of vedamahānidhāna

vedamahānidhāna - Great repository of the Vedas

Compound type : tatpurusha (veda+mahānidhāna)

• veda – sacred knowledge, Veda
  noun (masculine)
• mahānidhāna – great treasure, great repository
  noun (neuter)

Note: Modifies 'dvaipāyanam'