योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-31, verse-26

अयथाशास्त्रसंचारवृत्तेरर्थेन युध्यते ।
यो नरस्तस्य संग्रामे मृतस्य निरयोऽक्षयः ॥ २६ ॥

ayathāśāstrasaṃcāravṛtterarthena yudhyate ,
yo narastasya saṃgrāme mṛtasya nirayo'kṣayaḥ 26

26. ayathāśāstrasaṃcāravṛtteḥ arthena yudhyate yaḥ
naraḥ tasya saṃgrāme mṛtasya nirayaḥ akṣayaḥ

26. yaḥ naraḥ ayathāśāstrasaṃcāravṛtteḥ arthena yudhyate,
tasya saṃgrāme mṛtasya akṣayaḥ nirayaḥ (bhavati).

26. That man who fights for wealth acquired through conduct not in accordance with the scriptures (śāstra), for him, if he dies in battle, the torment of hell (niraya) is eternal.

Words meanings summery:

• अयथाशास्त्रसंचारवृत्तेः (ayathāśāstrasaṁcāravṛtteḥ) - from a conduct/livelihood not in accordance with scriptures (of (one whose) conduct/livelihood is not in accordance with scriptures)

• अर्थेन (arthena) - for the sake of wealth (by means of wealth, for the sake of wealth, for a purpose)

• युध्यते (yudhyate) - fights, battles, wages war

• यः (yaḥ) - who, which

• नरः (naraḥ) - man, person

• तस्य (tasya) - his, of him, to him

• संग्रामे (saṁgrāme) - in battle, in war

• मृतस्य (mṛtasya) - of the dead one, of the one who died

• निरयः (nirayaḥ) - hell (niraya) (hell, place of torment)

• अक्षयः (akṣayaḥ) - undiminishing, eternal, everlasting

Words meanings and morphology

अयथाशास्त्रसंचारवृत्तेः (ayathāśāstrasaṁcāravṛtteḥ) - from a conduct/livelihood not in accordance with scriptures (of (one whose) conduct/livelihood is not in accordance with scriptures)

(noun)

Genitive, feminine, singular of ayathāśāstrasaṃcāravṛtti

ayathāśāstrasaṁcāravṛtti - conduct or livelihood not in accordance with scriptures

Tatpurusha compound: a-yathā-śāstra-saṃcāra + vṛtti

Compound type : tatpurusha (ayathāśāstra+saṃcāra+vṛtti)

• ayathāśāstra – not according to scriptures, improper according to sacred texts
  adjective (neuter)
  Compound: a (negation) + yathā (as) + śāstra (scripture)
  Prefix: a
• saṃcāra – movement, activity, conduct, course
  noun (masculine)
  Prefix: sam
  Root: car (class 1)
• vṛtti – livelihood, conduct, mode of life, manner
  noun (feminine)
  Root: vṛt (class 1)

अर्थेन (arthena) - for the sake of wealth (by means of wealth, for the sake of wealth, for a purpose)

(noun)

Instrumental, masculine, singular of artha

artha - purpose, meaning, wealth, object, desire

युध्यते (yudhyate) - fights, battles, wages war

(verb)

3rd person , singular, middle, present (lat) of yudh

Root: yudh (class 4)

यः (yaḥ) - who, which

(pronoun)

Nominative, masculine, singular of yad

yad - which, that, who

नरः (naraḥ) - man, person

(noun)

Nominative, masculine, singular of nara

nara - man, human, person

तस्य (tasya) - his, of him, to him

(pronoun)

Genitive, masculine, singular of tad

tad - that, he, she, it

संग्रामे (saṁgrāme) - in battle, in war

(noun)

Locative, masculine, singular of saṃgrāma

saṁgrāma - battle, war, combat

Prefix: sam

Root: gram (class 1)

मृतस्य (mṛtasya) - of the dead one, of the one who died

(adjective)

Genitive, masculine, singular of mṛta

mṛta - dead, deceased

Past Passive Participle

Derived from the root mṛ- 'to die'.

Root: mṛ (class 1)

Note: Used here as a substantive.

निरयः (nirayaḥ) - hell (niraya) (hell, place of torment)

(noun)

Nominative, masculine, singular of niraya

niraya - hell, place of punishment, underworld

Root: i (class 2)

अक्षयः (akṣayaḥ) - undiminishing, eternal, everlasting

(adjective)

Nominative, masculine, singular of akṣaya

akṣaya - undiminishing, imperishable, eternal, everlasting

Negative compound: a (negation) + kṣaya (decay, destruction)

Compound type : nañ-tatpurusha (a+kṣaya)

• a – not, non-
  indeclinable
  Negative prefix.
• kṣaya – decay, destruction, loss, decrease
  noun (masculine)
  Root: kṣi (class 1)