महाभारतः mahābhārataḥ - book-7, chapter-69, verse-66

अङ्गिराः प्राह पुत्रस्य मन्त्रज्ञस्य बृहस्पतेः ।
बृहस्पतिरथोवाच अग्निवेश्याय धीमते ॥६६॥

66. aṅgirāḥ prāha putrasya mantrajñasya bṛhaspateḥ ,
bṛhaspatirathovāca agniveśyāya dhīmate.

66. aṅgirāḥ prāha putrasya mantra-jñasya bṛhaspateḥ
bṛhaspatiḥ atha uvāca agniveśyāya dhīmate

66. aṅgirāḥ mantra-jñasya putrasya bṛhaspateḥ
prāha atha bṛhaspatiḥ dhīmate agniveśyāya uvāca

66. Angiras spoke to his son Bṛhaspati, who was knowledgeable in sacred incantations (mantra). Then, Bṛhaspati in turn spoke to the wise Agnivēśya.

Words meanings summery:

• अङ्गिराः (aṅgirāḥ) - A revered Vedic sage, one of the Saptarishis (Angiras)

• प्राह (prāha) - narrated, recounted (said, spoke, related)

• पुत्रस्य (putrasya) - of his son (of the son, to the son)

• मन्त्र-ज्ञस्य (mantra-jñasya) - of the son who was expert in sacred incantations (of the one who knows mantras, of the expert in sacred incantations)

• बृहस्पतेः (bṛhaspateḥ) - of Bṛhaspati, the son of Angiras (of Bṛhaspati)

• बृहस्पतिः (bṛhaspatiḥ) - Bṛhaspati, the son of Angiras (Bṛhaspati)

• अथ (atha) - subsequently, in turn (then, now, thereupon)

• उवाच (uvāca) - relayed, instructed (said, spoke, told)

• अग्निवेश्याय (agniveśyāya) - to the sage Agnivēśya (to Agnivēśya)

• धीमते (dhīmate) - to the sagacious Agnivēśya (to the wise, to the intelligent)

Words meanings and morphology

अङ्गिराः (aṅgirāḥ) - A revered Vedic sage, one of the Saptarishis (Angiras)

(proper noun)

Nominative, masculine, singular of aṅgiras

aṅgiras - name of a Vedic sage, one of the Saptarishis

प्राह (prāha) - narrated, recounted (said, spoke, related)

(verb)

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

Perfect tense, 3rd person singular

From pra- + ah (to speak), irregular perfect form

Prefix: pra

Root: ah (class 2)

Note: From root 'ah' (to speak) with prefix 'pra'.

पुत्रस्य (putrasya) - of his son (of the son, to the son)

(noun)

Genitive, masculine, singular of putra

putra - son, child

Note: Can also be dative in some contexts. Here, genitive describing Bṛhaspati.

मन्त्र-ज्ञस्य (mantra-jñasya) - of the son who was expert in sacred incantations (of the one who knows mantras, of the expert in sacred incantations)

(adjective)

Genitive, masculine, singular of mantra-jña

mantra-jña - one who knows sacred incantations (mantra), expert in mantras

Compound type : tatpuruṣa (mantra+jña)

• mantra – sacred incantation, hymn, spell, advice
  noun (masculine)
  Root: man (class 4)
• jña – knower, expert, wise
  noun (masculine)
  From root jñā (to know)
  Root: jñā (class 9)

Note: Qualifies 'bṛhaspateḥ' and 'putrasya'.

बृहस्पतेः (bṛhaspateḥ) - of Bṛhaspati, the son of Angiras (of Bṛhaspati)

(proper noun)

Genitive, masculine, singular of bṛhaspati

bṛhaspati - Lord of sacred speech, name of a Vedic deity and preceptor of the gods

Note: Flexion for 'pati' (lord) type word.

बृहस्पतिः (bṛhaspatiḥ) - Bṛhaspati, the son of Angiras (Bṛhaspati)

(proper noun)

Nominative, masculine, singular of bṛhaspati

bṛhaspati - Lord of sacred speech, name of a Vedic deity and preceptor of the gods

Note: Flexion for 'pati' (lord) type word.

अथ (atha) - subsequently, in turn (then, now, thereupon)

(indeclinable)

Note: Used as a conjunction indicating sequence.

उवाच (uvāca) - relayed, instructed (said, spoke, told)

(verb)

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

Perfect tense, 3rd person singular

From root vac (to speak), perfect tense form

Root: vac (class 2)

Note: An irregular perfect form of 'vac'.

अग्निवेश्याय (agniveśyāya) - to the sage Agnivēśya (to Agnivēśya)

(proper noun)

Dative, masculine, singular of agniveśya

agniveśya - name of a sage, a descendant of Agnivēśa

धीमते (dhīmate) - to the sagacious Agnivēśya (to the wise, to the intelligent)

(adjective)

Dative, masculine, singular of dhīmat

dhīmat - wise, intelligent, sagacious, discerning

From dhī (thought, intelligence) + -mat (possessing)

Note: Qualifies 'agniveśyāya'.