महाभारतः mahābhārataḥ - book-12, chapter-226, verse-16

अनुनीय तथा काव्यः सत्यसंधो महाव्रतः ।
स्वैः प्राणैर्ब्राह्मणप्राणान्परित्राय दिवं गतः ॥१६॥

16. anunīya tathā kāvyaḥ satyasaṁdho mahāvrataḥ ,
svaiḥ prāṇairbrāhmaṇaprāṇānparitrāya divaṁ gataḥ.

16. anunīya tathā kāvyaḥ satyasaṃdhaḥ mahāvrataḥ
svaiḥ prāṇaiḥ brāhmaṇaprāṇān paritrāya divam gataḥ

16. tathā anunīya,
satyasaṃdhaḥ mahāvrataḥ kāvyaḥ svaiḥ prāṇaiḥ brāhmaṇaprāṇān paritrāya divam gataḥ

16. Having thus appeased, Kāvya, who was truthful in his pledges and observed great vows, protected the lives of the Brahmins by sacrificing his own life, and then departed to heaven.

Words meanings summery:

• अनुनीय (anunīya) - having appeased, having propitiated, having convinced

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

• काव्यः (kāvyaḥ) - Name of Śukra, the preceptor of the demons. (Kāvya)

• सत्यसंधः (satyasaṁdhaḥ) - truthful in pledges, whose word is truth

• महाव्रतः (mahāvrataḥ) - of great vows, observing great vows

• स्वैः (svaiḥ) - by his own

• प्राणैः (prāṇaiḥ) - Here, implying 'by sacrificing his own life'. (by lives, by breaths, by vital airs)

• ब्राह्मणप्राणान् (brāhmaṇaprāṇān) - the lives of the Brahmins

• परित्राय (paritrāya) - having protected, having saved

• दिवम् (divam) - to heaven, to the sky

• गतः (gataḥ) - gone, departed, reached

Words meanings and morphology

अनुनीय (anunīya) - having appeased, having propitiated, having convinced

(indeclinable)

Absolutive

From anu-√nī (to lead after, to propitiate) + ya suffix

Prefix: anu

Root: nī (class 1)

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

(indeclinable)

काव्यः (kāvyaḥ) - Name of Śukra, the preceptor of the demons. (Kāvya)

(proper noun)

Nominative, masculine, singular of kāvya

kāvya - descendant of Kavi, name of Śukra

सत्यसंधः (satyasaṁdhaḥ) - truthful in pledges, whose word is truth

(adjective)

Nominative, masculine, singular of satyasaṃdha

satyasaṁdha - truthful in pledges, firm in truth, whose promise is truth

Compound type : Bahuvrīhi (satya+saṃdha)

• satya – truth, true, real
  noun (neuter)
• saṃdha – pledge, promise, compact
  noun (masculine)

महाव्रतः (mahāvrataḥ) - of great vows, observing great vows

(adjective)

Nominative, masculine, singular of mahāvrata

mahāvrata - observing great vows, of great religious observances

Compound type : Bahuvrīhi (mahā+vrata)

• mahā – great, mighty
  adjective
• vrata – vow, religious observance, sacred duty
  noun (neuter)

स्वैः (svaiḥ) - by his own

(pronoun)

Instrumental, masculine, plural of sva

sva - own, one's own, self

प्राणैः (prāṇaiḥ) - Here, implying 'by sacrificing his own life'. (by lives, by breaths, by vital airs)

(noun)

Instrumental, masculine, plural of prāṇa

prāṇa - breath, life, vital air, life-force

ब्राह्मणप्राणान् (brāhmaṇaprāṇān) - the lives of the Brahmins

(noun)

Accusative, masculine, plural of brāhmaṇaprāṇa

brāhmaṇaprāṇa - lives of Brahmins

Compound type : Tatpurusha (brāhmaṇa+prāṇa)

• brāhmaṇa – Brahmin, relating to Brahmins
  noun (masculine)
• prāṇa – life, vital breath
  noun (masculine)

परित्राय (paritrāya) - having protected, having saved

(indeclinable)

Absolutive

From pari-√trā (to protect, to save) + ya suffix

Prefix: pari

Root: trā (class 2)

दिवम् (divam) - to heaven, to the sky

(noun)

Accusative, feminine, singular of div

div - heaven, sky, celestial region

गतः (gataḥ) - gone, departed, reached

(adjective)

Nominative, masculine, singular of gata

gata - gone, departed, attained, reached

Past Passive Participle

From √gam (to go) + kta suffix

Root: gam (class 1)

Note: Used here with an active sense of 'departed'.