महाभारतः mahābhārataḥ - book-3, chapter-188, verse-54

ज्ञानानि चाप्यविज्ञाय करिष्यन्ति क्रियास्तथा ।
आत्मच्छन्देन वर्तन्ते युगान्ते पर्युपस्थिते ॥५४॥

54. jñānāni cāpyavijñāya kariṣyanti kriyāstathā ,
ātmacchandena vartante yugānte paryupasthite.

54. jñānāni ca api avijñāya kariṣyanti kriyāḥ tathā
ātmacchandena vartante yugānte paryupasthite

54. At the impending end of the age (yuga), people will perform rituals and actions (kriyā) without proper understanding of knowledge, behaving solely according to their own desires.

Words meanings summery:

• ज्ञानानि (jñānāni) - pieces of knowledge, sciences, spiritual insights

• च (ca) - and, also

• अपि (api) - also, even, too

• अविज्ञाय (avijñāya) - without understanding, not having known

• करिष्यन्ति (kariṣyanti) - they will do, they will perform

• क्रियाः (kriyāḥ) - actions, rituals, rites

• तथा (tathā) - thus, so, similarly

• आत्मच्छन्देन (ātmacchandena) - by their own will, according to their own desire

• वर्तन्ते (vartante) - they are, they exist, they behave, they proceed

• युगान्ते (yugānte) - at the end of the age, in the Kali Yuga

• पर्युपस्थिते (paryupasthite) - Refers to the yugānte in the locative absolute construction. "When the end of the age (yuga) is imminent/has arrived." (when it has fully arrived, when it is imminent)

Words meanings and morphology

ज्ञानानि (jñānāni) - pieces of knowledge, sciences, spiritual insights

(noun)

Accusative, neuter, plural of jñāna

jñāna - knowledge, wisdom, understanding, sacred knowledge

derived from root jñā (to know)

Root: jñā (class 9)

च (ca) - and, also

(indeclinable)

अपि (api) - also, even, too

(indeclinable)

अविज्ञाय (avijñāya) - without understanding, not having known

(indeclinable)

Absolutive (gerund)

Root jñā (to know) with prefix vi- and negative particle a-, forming an absolutive with suffix lyaP.

Compound type : nañ-tatpuruṣa (a+vijñāya)

• a – not, non-
  indeclinable
  negative particle
• vijñāya – having known, having understood
  indeclinable
  Absolutive (gerund)
  Root jñā (to know) with prefix vi-, forming an absolutive with suffix lyaP.
  Prefix: vi
  Root: jñā (class 9)

करिष्यन्ति (kariṣyanti) - they will do, they will perform

(verb)

3rd person , plural, active, future (lṛṭ) of kṛ

Future Tense, 3rd Person Plural

Root kṛ (8th class) + sya (future sign) + anti (3rd person plural ending). i added between root and sya.

Root: kṛ (class 8)

क्रियाः (kriyāḥ) - actions, rituals, rites

(noun)

Accusative, feminine, plural of kriyā

kriyā - action, deed, ritual, ceremony

Derived from root kṛ (to do).

Root: kṛ (class 8)

तथा (tathā) - thus, so, similarly

(indeclinable)

आत्मच्छन्देन (ātmacchandena) - by their own will, according to their own desire

(noun)

Instrumental, masculine, singular of ātmacchanda

ātmacchanda - one's own will, self-desire, arbitrary will

Compound type : ṣaṣṭhī-tatpuruṣa (ātman+chanda)

• ātman – self, soul, spirit, essential nature (ātman)
  noun (masculine)
  Root: an
• chanda – will, desire, pleasure, wish, meter
  noun (masculine)
  derived from root chad (to please) or chand (to please).
  Root: chand (class 10)

वर्तन्ते (vartante) - they are, they exist, they behave, they proceed

(verb)

3rd person , plural, middle, present (laṭ) of vṛt

Present Tense, 3rd Person Plural

Root vṛt (1st class, ātmanepada) + a (class sign) + ante (3rd person plural ending).

Root: vṛt (class 1)

युगान्ते (yugānte) - at the end of the age, in the Kali Yuga

(noun)

Locative, masculine, singular of yugānta

yugānta - end of an age (yuga), epoch's end

Compound type : tatpuruṣa (yuga+anta)

• yuga – age, epoch, period of time, yuga
  noun (neuter)
• anta – end, termination, boundary
  noun (masculine)

पर्युपस्थिते (paryupasthite) - Refers to the yugānte in the locative absolute construction. "When the end of the age (yuga) is imminent/has arrived." (when it has fully arrived, when it is imminent)

(adjective)

Locative, masculine, singular of paryupasthita

paryupasthita - present, arrived, imminent, standing by

Past Passive Participle

Root sthā (to stand) with prefixes pari- and upa-, forming a past passive participle.

Prefixes: pari+upa

Root: sthā (class 1)

Note: Agreement with yugānte.