योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-31, verse-30

प्रजोपद्रवनिष्ठस्य राज्ञोऽराज्ञोऽथ वा प्रभोः ।
अर्थेन ये मृता युद्धे ते वै निरयगामिनः ॥ ३० ॥

prajopadravaniṣṭhasya rājño'rājño'tha vā prabhoḥ ,
arthena ye mṛtā yuddhe te vai nirayagāminaḥ 30

30. praja-upadrava-niṣṭhasya rājñaḥ arājñaḥ atha vā
prabhoḥ arthena ye mṛtāḥ yuddhe te vai niraya-gāminaḥ

30. praja-upadrava-niṣṭhasya rājñaḥ arājñaḥ vā prabhoḥ arthena ye yuddhe mṛtāḥ,
te vai niraya-gāminaḥ (bhavanti).

30. Those who die in battle for the sake of the wealth of a ruler (rājā) – or even a non-ruler or any lord – who is intent on oppressing the populace, they indeed go to hell.

Words meanings summery:

• प्रज-उपद्रव-निष्ठस्य (praja-upadrava-niṣṭhasya) - of one devoted to oppressing the populace; of one intent on tormenting the people

• राज्ञः (rājñaḥ) - of a king, of the king

• अराज्ञः (arājñaḥ) - of a non-king, of one who is not a ruler

• अथ (atha) - or, moreover (then, thus, also)

• वा (vā) - or, either

• प्रभोः (prabhoḥ) - of any lord/master (of a lord, of a master)

• अर्थेन (arthena) - for the sake of wealth or material gain (by means of wealth, for the sake of gain/money)

• ये (ye) - those who (who, which (plural))

• मृताः (mṛtāḥ) - those who have died (dead, deceased)

• युद्धे (yuddhe) - in battle, in war

• ते (te) - they, those

• वै (vai) - indeed, truly, certainly

• निरय-गामिनः (niraya-gāminaḥ) - those who go to hell, hell-goers

Words meanings and morphology

प्रज-उपद्रव-निष्ठस्य (praja-upadrava-niṣṭhasya) - of one devoted to oppressing the populace; of one intent on tormenting the people

(adjective)

Genitive, masculine, singular of praja-upadrava-niṣṭha

praja-upadrava-niṣṭha - intent on tormenting the people

compound of `praja-upadrava` (people's torment) and `niṣṭha` (devoted to)

Compound type : tatpuruṣa (praja+upadrava+niṣṭha)

• praja – populace, subjects, offspring
  noun (feminine)
  Prefix: pra
  Root: jan (class 4)
• upadrava – mischief, calamity, oppression, torment
  noun (masculine)
  from `upa-dru` (to run to, attack)
  Prefix: upa
  Root: dru (class 1)
• niṣṭha – devoted to, standing in, relying on, intent on
  adjective (masculine)
  from `ni-sthā` (to stand in, rely on)
  Prefix: ni
  Root: sthā (class 1)

Note: Qualifies `rājñaḥ`, `arājñaḥ`, `prabhoḥ`

राज्ञः (rājñaḥ) - of a king, of the king

(noun)

Genitive, masculine, singular of rājan

rājan - king, ruler, monarch

अराज्ञः (arājñaḥ) - of a non-king, of one who is not a ruler

(noun)

Genitive, masculine, singular of arājan

arājan - non-king, one who is not a ruler

`nañ-tatpuruṣa` compound

Compound type : nañ-tatpuruṣa (a+rājan)

• a – not, non-, un-
  indeclinable
  negating prefix
• rājan – king, ruler, monarch
  noun (masculine)

अथ (atha) - or, moreover (then, thus, also)

(indeclinable)

Note: often combined with `vā` to mean 'or else' or 'furthermore, or'

वा (vā) - or, either

(indeclinable)

Note: `atha vā` means 'or else' or 'furthermore, or'

प्रभोः (prabhoḥ) - of any lord/master (of a lord, of a master)

(noun)

Genitive, masculine, singular of prabhu

prabhu - lord, master, powerful

from `pra-bhū` (to be powerful)

Prefix: pra

Root: bhū (class 1)

अर्थेन (arthena) - for the sake of wealth or material gain (by means of wealth, for the sake of gain/money)

(noun)

Instrumental, masculine, singular of artha

artha - purpose, object, wealth, money, gain

Note: 'by means of wealth' or 'for the sake of wealth/gain'.

ये (ye) - those who (who, which (plural))

(pronoun)

Nominative, masculine, plural of yad

yad - who, which, what

मृताः (mṛtāḥ) - those who have died (dead, deceased)

(adjective)

Nominative, masculine, plural of mṛta

mṛta - dead, deceased

Past Passive Participle

derived from root `mṛ` + `kta` (ta) suffix

Root: mṛ (class 6)

Note: Qualifies `ye`

युद्धे (yuddhe) - in battle, in war

(noun)

Locative, neuter, singular of yuddha

yuddha - battle, war, fight

Past Passive Participle

derived from root `yudh` + `kta` (ta) suffix

Root: yudh (class 4)

ते (te) - they, those

(pronoun)

Nominative, masculine, plural of tad

tad - that, he, she, it

Note: Correlative to `ye`

वै (vai) - indeed, truly, certainly

(indeclinable)

emphatic particle

निरय-गामिनः (niraya-gāminaḥ) - those who go to hell, hell-goers

(noun)

Nominative, masculine, plural of niraya-gāmin

niraya-gāmin - going to hell, hell-bound

compound of `niraya` (hell) and `gāmin` (going, moving)

Compound type : tatpuruṣa (niraya+gāmin)

• niraya – hell, underworld, abode of punishment
  noun (masculine)
  from `nir-i` (to go out, sink down)
  Prefix: nir
  Root: i (class 2)
• gāmin – going, moving, leading to
  adjective (masculine)
  derived from root `gam` + `in` suffix
  Root: gam (class 1)

Note: Null copula 'are' implied.