महाभारतः mahābhārataḥ - book-8, chapter-49, verse-19

अविज्ञानाद्भवान्यच्च धर्मं रक्षति धर्मवित् ।
प्राणिनां हि वधं पार्थ धार्मिको नावबुध्यते ॥१९॥

19. avijñānādbhavānyacca dharmaṁ rakṣati dharmavit ,
prāṇināṁ hi vadhaṁ pārtha dhārmiko nāvabudhyate.

19. avijñānāt bhavān yat ca dharmam rakṣati dharmavit
prāṇinām hi vadham pārtha dhārmikaḥ na avabudhyate

19. pārtha,
dharmavit,
bhavān,
avijñānāt,
yat,
ca,
dharmam,
rakṣati.
hi,
dhārmikaḥ,
prāṇinām,
vadham,
na,
avabudhyate

19. O Pārtha (Arjuna), you, a knower of (dharma) (natural law), protect (this) due to a lack of proper understanding, and indeed, a righteous person (dhārmika) does not consider the slaughter of living beings (as consistent with dharma).

Words meanings summery:

• अविज्ञानात् (avijñānāt) - from ignorance, due to lack of knowledge

• भवान् (bhavān) - you (masculine, respectful)

• यत् (yat) - which, that

• च (ca) - and

• धर्मम् (dharmam) - natural law, constitution, duty, righteousness (dharma)

• रक्षति (rakṣati) - protects, guards, preserves

• धर्मवित् (dharmavit) - knower of (dharma) (natural law)

• प्राणिनाम् (prāṇinām) - of living beings, of creatures

• हि (hi) - indeed, certainly

• वधम् (vadham) - killing, slaughter, destruction

• पार्थ (pārtha) - O son of Pṛthā, O Arjuna

• धार्मिकः (dhārmikaḥ) - righteous person, one who practices (dharma)

• न (na) - not

• अवबुध्यते (avabudhyate) - understands, recognizes, approves

Words meanings and morphology

अविज्ञानात् (avijñānāt) - from ignorance, due to lack of knowledge

(noun)

Ablative, neuter, singular of avijñāna

avijñāna - ignorance, lack of knowledge, nescience

Compound of 'a' (negative) and 'vijñāna' (knowledge)

Compound type : tatpuruṣa (a+vijñāna)

• a – not, un-
  indeclinable
  negative prefix
• vijñāna – knowledge, understanding, wisdom
  noun (neuter)
  Prefix: vi
  Root: jñā (class 9)

भवान् (bhavān) - you (masculine, respectful)

(pronoun)

Nominative, masculine, singular of bhavat

bhavat - you (respectful form), Sir

यत् (yat) - which, that

(pronoun)

Accusative, neuter, singular of yad

yad - which, that, what

च (ca) - and

(indeclinable)

धर्मम् (dharmam) - natural law, constitution, duty, righteousness (dharma)

(noun)

Accusative, masculine, singular of dharma

dharma - natural law, constitution, duty, righteousness, virtue, custom

Root: dhṛ (class 1)

रक्षति (rakṣati) - protects, guards, preserves

(verb)

3rd person , singular, active, present (laṭ) of rakṣ

Root: rakṣ (class 1)

धर्मवित् (dharmavit) - knower of (dharma) (natural law)

(noun)

Nominative, masculine, singular of dharmavit

dharmavit - knower of (dharma), one who understands the natural law/duty

compound of dharma + vid (knower)

Compound type : tatpuruṣa (dharma+vid)

• dharma – natural law, constitution, duty, righteousness, virtue, custom
  noun (masculine)
  Root: dhṛ (class 1)
• vid – knower, understanding
  noun (masculine)
  agent noun derived from root
  from root vid (to know)
  Root: vid (class 2)

प्राणिनाम् (prāṇinām) - of living beings, of creatures

(noun)

Genitive, plural of prāṇin

prāṇin - living being, creature, sentient being

हि (hi) - indeed, certainly

(indeclinable)

वधम् (vadham) - killing, slaughter, destruction

(noun)

Accusative, masculine, singular of vadha

vadha - killing, slaughter, striking, destruction

From root vadh (to strike, kill)

Root: vadh (class 1)

पार्थ (pārtha) - O son of Pṛthā, O Arjuna

(proper noun)

Vocative, masculine, singular of pārtha

pārtha - son of Pṛthā (Arjuna)

patronymic from Pṛthā

धार्मिकः (dhārmikaḥ) - righteous person, one who practices (dharma)

(adjective)

Nominative, masculine, singular of dhārmika

dhārmika - righteous, virtuous, adherent of (dharma), pious

Derived from dharma + ṭhak (suffix for 'related to' or 'one who follows')

Note: Used as a noun here.

न (na) - not

(indeclinable)

अवबुध्यते (avabudhyate) - understands, recognizes, approves

(verb)

3rd person , singular, middle, present (laṭ) of ava-budh

Prefix: ava

Root: budh (class 4)