योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-6, verse-43

ज्वलति द्वेषदावाग्निर्हृन्मरौ कायतापदः ।
अज्ञमात्सर्यमनसि परापवदनच्छदा ॥ ४३ ॥

jvalati dveṣadāvāgnirhṛnmarau kāyatāpadaḥ ,
ajñamātsaryamanasi parāpavadanacchadā 43

43. jvalati dveṣadāvāgniḥ hṛtmarau kāyatāpadaḥ
ajñamātsaryamanasi parāpavadanacchadā

43. dveṣadāvāgniḥ hṛtmarau ajñamātsaryamanasi
kāyatāpadaḥ parāpavadanacchadā jvalati

43. A blazing forest fire of hatred burns in the desert of the heart, bringing calamity to the embodied state. It resides within the mind of the ignorant and envious, and its covering consists of slandering others.

Words meanings summery:

• ज्वलति (jvalati) - burns, blazes, shines

• द्वेषदावाग्निः (dveṣadāvāgniḥ) - the forest fire of hatred, the blazing fire of animosity

• हृत्मरौ (hṛtmarau) - in the desert of the heart

• कायतापदः (kāyatāpadaḥ) - bringing calamity to the embodied state, source of bodily suffering

• अज्ञमात्सर्यमनसि (ajñamātsaryamanasi) - in the mind of the ignorant and envious

• परापवदनच्छदा (parāpavadanacchadā) - whose covering is the slander of others

Words meanings and morphology

ज्वलति (jvalati) - burns, blazes, shines

(verb)

3rd person , singular, active, present indicative (laṭ) of jval

Root: jval (class 1)

द्वेषदावाग्निः (dveṣadāvāgniḥ) - the forest fire of hatred, the blazing fire of animosity

(noun)

Nominative, masculine, singular of dveṣadāvāgni

dveṣadāvāgni - forest fire of hatred

Compound type : tatpuruṣa (dveṣa+dāvāgni)

• dveṣa – hatred, animosity, malice
  noun (masculine)
  From root 'dviṣ' (to hate)
  Root: dviṣ (class 2)
• dāvāgni – forest fire, wildfire
  noun (masculine)

हृत्मरौ (hṛtmarau) - in the desert of the heart

(noun)

Locative, masculine, singular of hṛtmaru

hṛtmaru - heart-desert

Compound type : tatpuruṣa (hṛt+maru)

• hṛt – heart
  noun (neuter)
• maru – desert, waste land
  noun (masculine)

Note: External sandhi 'n' from 't' before 'm' is undone.

कायतापदः (kāyatāpadaḥ) - bringing calamity to the embodied state, source of bodily suffering

(adjective)

Nominative, masculine, singular of kāyatāpada

kāyatāpada - that which causes calamity to the embodied state

Compound derived from 'kāyatā' (state of having a body) and 'āpad' (calamity). Forms a masculine nominative singular adjective or noun in apposition to 'dveṣadāvāgniḥ'.

Compound type : tatpuruṣa (kāyatā+āpada)

• kāyatā – corporeality, the state of having a body, embodied existence
  noun (feminine)
  From 'kāya' (body) + 'tā' (suffix forming abstract feminine noun)
• āpada – calamity, misfortune, distress
  noun (feminine)

अज्ञमात्सर्यमनसि (ajñamātsaryamanasi) - in the mind of the ignorant and envious

(noun)

Locative, neuter, singular of ajñamātsaryamanas

ajñamātsaryamanas - mind of ignorance and envy

Compound type : tatpuruṣa (ajña+mātsarya+manas)

• ajña – ignorant, foolish, unknowing
  adjective (masculine)
  Negation of 'jña' (knowing)
  Prefix: a
  Root: jñā (class 9)
• mātsarya – envy, jealousy, malice
  noun (neuter)
  From 'matsara' (envious)
• manas – mind, intellect, thought
  noun (neuter)
  Root: man (class 4)

परापवदनच्छदा (parāpavadanacchadā) - whose covering is the slander of others

(adjective)

Nominative, masculine, singular of parāpavadanacchada

parāpavadanacchada - having the slander of others as a cover/veil

Compound noun 'para-apavādana' (slander of others) + 'cchada' (covering). The 'ā' ending for a masculine nominative singular is highly unusual for 'cchada'. Interpreted as an adjective agreeing with 'dveṣadāvāgniḥ'.

Compound type : bahuvrīhi (para+apavādana+cchada)

• para – other, another
  adjective (masculine)
• apavādana – slandering, blaming, reviling
  noun (neuter)
  From root 'vad' (to speak) with 'apa' prefix
  Prefix: apa
  Root: vad (class 1)
• cchada – cover, veil, leaf
  noun (masculine)
  Root: chad (class 1)

Note: Internal sandhi (a+a=ā) in 'parāpavādana' is preserved.