महाभारतः mahābhārataḥ - book-14, chapter-51, verse-15

विदितो मेऽसि दुर्धर्ष नारदाद्देवलात्तथा ।
कृष्णद्वैपायनाच्चैव तथा कुरुपितामहात् ॥१५॥

15. vidito me'si durdharṣa nāradāddevalāttathā ,
kṛṣṇadvaipāyanāccaiva tathā kurupitāmahāt.

15. viditaḥ me asi durdharṣa nāradāt devalāt tathā
kṛṣṇadvaipāyanāt ca eva tathā kurupitāmahāt

15. durdharṣa nāradāt devalāt tathā kṛṣṇadvaipāyanāt
ca eva tathā kurupitāmahāt me viditaḥ asi

15. O unassailable one, you are known to me from Nārada, from Devala, and also from Kṛṣṇa Dvaipāyana (Vyāsa), and similarly from the grandfather of the Kurus (Bhīṣma).

Words meanings summery:

• विदितः (viditaḥ) - known, understood

• मे (me) - to me, for me

• असि (asi) - you are

• दुर्धर्ष (durdharṣa) - O unassailable one, O invincible one

• नारदात् (nāradāt) - from Nārada

• देवलात् (devalāt) - from Devala

• तथा (tathā) - and, thus, similarly

• कृष्णद्वैपायनात् (kṛṣṇadvaipāyanāt) - from Kṛṣṇa Dvaipāyana (Vyāsa)

• च (ca) - and, also, moreover

• एव (eva) - indeed, only, alone, just

• तथा (tathā) - and, thus, similarly

• कुरुपितामहात् (kurupitāmahāt) - from the grandfather of the Kurus (Bhīṣma)

Words meanings and morphology

विदितः (viditaḥ) - known, understood

(adjective)

Nominative, masculine, singular of vidita

vidita - known, understood, perceived

Past Passive Participle

from vid (to know)

Root: vid (class 2)

Note: Agrees with the implied subject 'you'

मे (me) - to me, for me

(pronoun)

Dative, singular of asmad

asmad - I, we (pronoun)

Note: Can also be genitive

असि (asi) - you are

(verb)

2nd person , singular, active, present (laṭ) of as

present active

2nd person singular present active indicative of as

Root: as (class 2)

दुर्धर्ष (durdharṣa) - O unassailable one, O invincible one

(adjective)

Vocative, masculine, singular of durdharṣa

durdharṣa - difficult to attack/overpower, invincible, unassailable

compound of dur (difficult) and dharṣa (attack)

Compound type : prādi-tatpuruṣa (dur+dhṛṣ)

• dur – bad, difficult, ill
  indeclinable
• dharṣa – attack, assault, boldness
  noun (masculine)
  from dhṛṣ (to be bold, to attack)
  Root: dhṛṣ (class 5)

नारदात् (nāradāt) - from Nārada

(proper noun)

Ablative, masculine, singular of nārada

nārada - Nārada (a divine sage)

Note: Source of knowledge

देवलात् (devalāt) - from Devala

(proper noun)

Ablative, masculine, singular of devala

devala - Devala (a sage)

Note: Source of knowledge

तथा (tathā) - and, thus, similarly

(indeclinable)

कृष्णद्वैपायनात् (kṛṣṇadvaipāyanāt) - from Kṛṣṇa Dvaipāyana (Vyāsa)

(proper noun)

Ablative, masculine, singular of kṛṣṇadvaipāyana

kṛṣṇadvaipāyana - Kṛṣṇa Dvaipāyana (Vyāsa, the compiler of the Vedas)

compound of Kṛṣṇa and Dvaipāyana

Compound type : karmadhāraya (kṛṣṇa+dvaipāyana)

• kṛṣṇa – black, dark; name of a deity/sage
  adjective (masculine)
• dvaipāyana – dweller on an island; name of a sage
  proper noun (masculine)
  from dvīpa (island)

Note: Source of knowledge

च (ca) - and, also, moreover

(indeclinable)

एव (eva) - indeed, only, alone, just

(indeclinable)

तथा (tathā) - and, thus, similarly

(indeclinable)

कुरुपितामहात् (kurupitāmahāt) - from the grandfather of the Kurus (Bhīṣma)

(proper noun)

Ablative, masculine, singular of kurupitāmaha

kurupitāmaha - grandfather of the Kurus (referring to Bhīṣma)

compound of kuru (name of a dynasty) and pitāmaha (grandfather)

Compound type : ṣaṣṭhī-tatpuruṣa (kuru+pitāmaha)

• kuru – name of an ancient tribe and dynasty
  proper noun (masculine)
• pitāmaha – grandfather
  noun (masculine)

Note: Source of knowledge