महाभारतः mahābhārataḥ - book-12, chapter-271, verse-27

श्रुतिशास्त्रग्रहोपेतः षोडशर्त्विक्क्रतुश्च सः ।
पितामहश्च विष्णुश्च सोऽश्विनौ स पुरंदरः ॥२७॥

27. śrutiśāstragrahopetaḥ ṣoḍaśartvikkratuśca saḥ ,
pitāmahaśca viṣṇuśca so'śvinau sa puraṁdaraḥ.

27. śrutiśāstragrahopetaḥ ṣoḍaśaṛtvijkratuḥ ca saḥ
pitāmahaḥ ca viṣṇuḥ ca saḥ aśvinau saḥ purandaraḥ

27. saḥ śrutiśāstragrahopetaḥ ca ṣoḍaśaṛtvijkratuḥ saḥ
pitāmahaḥ ca viṣṇuḥ ca saḥ aśvinau saḥ purandaraḥ

27. That (dharma) is endowed with the grasping of scriptural knowledge (Śruti and Śāstra); it is also the Vedic ritual (kratu) with sixteen priests (ṛtvij). That (dharma) is Brahmā (Pitāmaha) and Viṣṇu; it is the two Aśvins; it is Purandara (Indra).

Words meanings summery:

• श्रुतिशास्त्रग्रहोपेतः (śrutiśāstragrahopetaḥ) - endowed with the comprehension of Shruti and Shastra

• षोडशऋत्विज्क्रतुः (ṣoḍaśaṛtvijkratuḥ) - a Vedic ritual (kratu) with sixteen priests (ṛtvij)

• च (ca) - and

• सः (saḥ) - that (dharma) (that, he)

• पितामहः (pitāmahaḥ) - Brahmā (Pitāmaha) (grandfather, great progenitor)

• च (ca) - and

• विष्णुः (viṣṇuḥ) - Vishnu

• च (ca) - and

• सः (saḥ) - that (dharma) (that, he)

• अश्विनौ (aśvinau) - the two Ashvins (twin deities)

• सः (saḥ) - that (dharma) (that, he)

• पुरन्दरः (purandaraḥ) - Indra, destroyer of fortresses

Words meanings and morphology

श्रुतिशास्त्रग्रहोपेतः (śrutiśāstragrahopetaḥ) - endowed with the comprehension of Shruti and Shastra

(adjective)

Nominative, masculine, singular of śrutiśāstragrahopeta

śrutiśāstragrahopeta - endowed with the understanding of sacred scriptures and traditions

Compound type : tatpuruṣa (śrutiśāstragraha+upeta)

• śruti – Vedic revelation, sacred tradition, hearing
  noun (feminine)
  Root: śru (class 1)
• śāstra – scripture, treatise, sacred doctrine, teaching
  noun (neuter)
  Root: śās (class 2)
• graha – grasping, seizing, comprehension, understanding
  noun (masculine)
  Root: grah (class 9)
• upeta – endowed with, possessed of, approached
  adjective (masculine)
  Past Passive Participle
  Past passive participle of the verb root i (to go) with prefix upa.
  Prefix: upa
  Root: i (class 2)

षोडशऋत्विज्क्रतुः (ṣoḍaśaṛtvijkratuḥ) - a Vedic ritual (kratu) with sixteen priests (ṛtvij)

(noun)

Nominative, masculine, singular of ṣoḍaśaṛtvijkratu

ṣoḍaśaṛtvijkratu - a Vedic ritual having sixteen priests

Compound type : bahuvrīhi (ṣoḍaśan+ṛtvij+kratu)

• ṣoḍaśan – sixteen
  numeral
• ṛtvij – sacrificial priest
  noun (masculine)
  Root: yaj (class 1)
• kratu – Vedic ritual, sacrifice, power, determination
  noun (masculine)

च (ca) - and

(indeclinable)

सः (saḥ) - that (dharma) (that, he)

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

पितामहः (pitāmahaḥ) - Brahmā (Pitāmaha) (grandfather, great progenitor)

(proper noun)

Nominative, masculine, singular of pitāmaha

pitāmaha - grandfather, great progenitor, an epithet of Brahmā

Compound type : tatpuruṣa (pitṛ+maha)

• pitṛ – father
  noun (masculine)
• maha – great, big
  adjective (masculine)

च (ca) - and

(indeclinable)

विष्णुः (viṣṇuḥ) - Vishnu

(proper noun)

Nominative, masculine, singular of viṣṇu

viṣṇu - Vishnu (a prominent Hindu deity)

Root: viś (class 6)

च (ca) - and

(indeclinable)

सः (saḥ) - that (dharma) (that, he)

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

अश्विनौ (aśvinau) - the two Ashvins (twin deities)

(proper noun)

Nominative, masculine, dual of aśvin

aśvin - the Ashvins (twin Vedic deities, celestial horsemen)

सः (saḥ) - that (dharma) (that, he)

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

पुरन्दरः (purandaraḥ) - Indra, destroyer of fortresses

(proper noun)

Nominative, masculine, singular of purandara

purandara - destroyer of strongholds, an epithet of Indra

Compound type : upapada-tatpuruṣa (puram+dara)

• pur – city, fortress, stronghold
  noun (feminine)
• dara – breaking, splitting, one who breaks/destroys
  noun (masculine)
  Root: dṝ (class 1)