महाभारतः mahābhārataḥ - book-14, chapter-43, verse-33

बुद्धिरध्यवसायेन ध्यानेन च महांस्तथा ।
निश्चित्य ग्रहणं नित्यमव्यक्तं नात्र संशयः ॥३३॥

33. buddhiradhyavasāyena dhyānena ca mahāṁstathā ,
niścitya grahaṇaṁ nityamavyaktaṁ nātra saṁśayaḥ.

33. buddhiḥ adhyavasāyena dhyānena ca mahān tathā
niścitya grahaṇam nityam avyaktam na atra saṃśayaḥ

33. tathā mahān buddhiḥ adhyavasāyena dhyānena ca nityam avyaktam grahaṇam niścitya,
atra saṃśayaḥ na.

33. Thus, the great principle (mahat), through intellect, determination, and meditation (dhyāna), definitively ascertains the eternal unmanifest (prakṛti) as an object of apprehension. There is no doubt in this.

Words meanings summery:

• बुद्धिः (buddhiḥ) - intellect (intellect, understanding, discernment, reason)

• अध्यवसायेन (adhyavasāyena) - by determination (by determination, by resolve, by effort, by perseverance)

• ध्यानेन (dhyānena) - by meditation (dhyāna) (by meditation, by contemplation)

• च (ca) - and (and, also)

• महान् (mahān) - the great principle (mahat) (great, large, mighty; the great one, the great principle (mahat))

• तथा (tathā) - thus (thus, so, similarly, in that manner)

• निश्चित्य (niścitya) - having definitively ascertained (having ascertained, having determined, having resolved, having definitively known)

• ग्रहणम् (grahaṇam) - apprehension (grasping, seizing, apprehension, perception, acceptance)

• नित्यम् (nityam) - eternal (eternal, constant, perpetual; always, constantly)

• अव्यक्तम् (avyaktam) - the unmanifest (prakṛti) (unmanifest, unexpressed, unrevealed; the unmanifest (prakṛti))

• न (na) - not (not, no)

• अत्र (atra) - in this matter (here, in this place, in this matter)

• संशयः (saṁśayaḥ) - doubt (doubt, uncertainty, suspicion)

Words meanings and morphology

बुद्धिः (buddhiḥ) - intellect (intellect, understanding, discernment, reason)

(noun)

Nominative, feminine, singular of buddhi

buddhi - intellect, understanding, discernment, reason, perception

From √budh (to know, perceive) + Kti-suffix

Root: budh (class 1)

अध्यवसायेन (adhyavasāyena) - by determination (by determination, by resolve, by effort, by perseverance)

(noun)

Instrumental, masculine, singular of adhyavasāya

adhyavasāya - determination, resolve, effort, perseverance, exertion

From adhi-ava-√so (to finish, exert)

Prefixes: adhi+ava

Root: so (class 4)

ध्यानेन (dhyānena) - by meditation (dhyāna) (by meditation, by contemplation)

(noun)

Instrumental, neuter, singular of dhyāna

dhyāna - meditation, contemplation, deep thought

From √dhyai (to meditate) + ana

Root: dhyai (class 1)

च (ca) - and (and, also)

(indeclinable)

महान् (mahān) - the great principle (mahat) (great, large, mighty; the great one, the great principle (mahat))

(noun)

Nominative, masculine, singular of mahat

mahat - great, large, vast, powerful; the great principle, cosmic intellect (in Sāṅkhya)

From √mah (to be great) + at

Root: mah (class 1)

Note: Here 'mahān' refers to the 'mahat' principle, which is often neuter, but the form itself is masculine nominative singular.

तथा (tathā) - thus (thus, so, similarly, in that manner)

(indeclinable)

निश्चित्य (niścitya) - having definitively ascertained (having ascertained, having determined, having resolved, having definitively known)

(indeclinable)

Absolutive

From ni-√ci (to gather, observe, ascertain) + ktvā/lyap

Prefix: ni

Root: ci (class 5)

Note: Absolutive verb form.

ग्रहणम् (grahaṇam) - apprehension (grasping, seizing, apprehension, perception, acceptance)

(noun)

Accusative, neuter, singular of grahaṇa

grahaṇa - grasping, seizing, apprehension, perception, acceptance

From √grah (to seize, grasp) + ana

Root: grah (class 9)

Note: Functions as the object of `niścitya`, referring to the act of apprehending.

नित्यम् (nityam) - eternal (eternal, constant, perpetual; always, constantly)

(adjective)

Accusative, neuter, singular of nitya

nitya - eternal, constant, perpetual, continuous; always

Note: Agrees with `avyaktam`.

अव्यक्तम् (avyaktam) - the unmanifest (prakṛti) (unmanifest, unexpressed, unrevealed; the unmanifest (prakṛti))

(noun)

Accusative, neuter, singular of avyakta

avyakta - unmanifest, unexpressed, undiscerned, invisible; the primary matter, primordial nature (prakṛti)

Past Passive Participle

Negation (a-) + vi-√añj (to manifest) + kta

Compound type : tatpurusha (a+vyakta)

• a – not, un-
  indeclinable
  Negative prefix
• vyakta – manifested, expressed, clear, visible
  adjective (neuter)
  Past Passive Participle
  From vi-√añj (to manifest) + kta
  Prefix: vi
  Root: añj (class 7)

Note: Object of `niścitya`.

न (na) - not (not, no)

(indeclinable)

अत्र (atra) - in this matter (here, in this place, in this matter)

(indeclinable)

From pronominal base a- + tral suffix

संशयः (saṁśayaḥ) - doubt (doubt, uncertainty, suspicion)

(noun)

Nominative, masculine, singular of saṃśaya

saṁśaya - doubt, uncertainty, suspicion, indecision

From sam-√śī (to lie down, rest, doubt)

Prefix: sam

Root: śī (class 2)

Note: Predicate nominative for an implied 'asti'.