महाभारतः mahābhārataḥ - book-12, chapter-182, verse-14

तपोनित्येन दान्तेन मुनिना संयतात्मना ।
अजितं जेतुकामेन भाव्यं सङ्गेष्वसङ्गिना ॥१४॥

14. taponityena dāntena muninā saṁyatātmanā ,
ajitaṁ jetukāmena bhāvyaṁ saṅgeṣvasaṅginā.

14. taponityena dāntena muninā saṃyatātmanā
ajitaṃ jetukāmena bhāvyaṃ saṅgeṣu asaṅginā

14. taponityena dāntena saṃyatātmanā muninā
ajitaṃ jetukāmena saṅgeṣu asaṅginā bhāvyaṃ

14. A sage (muni) who is ever devoted to asceticism (tapas), self-controlled, with a disciplined self (ātman), and wishing to conquer that which is unconquered, should be unattached in all associations.

Words meanings summery:

• तपोनित्येन (taponityena) - by one constantly practicing asceticism, by one whose nature is austerity

• दान्तेन (dāntena) - by the self-controlled, by the subdued

• मुनिना (muninā) - by the sage, by the ascetic

• संयतात्मना (saṁyatātmanā) - by one whose self is restrained, by one with a disciplined mind/self

• अजितम् (ajitam) - That which is difficult to conquer, often the mind or senses. (the unconquered, the unsurpassed)

• जेतुकामेन (jetukāmena) - Refers to the sage (muninā) as the agent. (by one wishing to conquer, by one desirous of victory)

• भाव्यं (bhāvyaṁ) - it should be, one should become, it is to be

• सङ्गेषु (saṅgeṣu) - in attachments, in associations, in connections

• असङ्गिना (asaṅginā) - Agrees with muninā, referring to the sage. (by the unattached, by one free from attachment)

Words meanings and morphology

तपोनित्येन (taponityena) - by one constantly practicing asceticism, by one whose nature is austerity

(adjective)

Instrumental, masculine, singular of taponitya

taponitya - one whose nature is austerity (tapas), constantly devoted to asceticism

Compound type : tatpuruṣa (tapas+nitya)

• tapas – asceticism, austerity, heat, penance
  noun (neuter)
  Root: tap (class 1)
• nitya – constant, eternal, perpetual, inherent
  adjective (masculine)

दान्तेन (dāntena) - by the self-controlled, by the subdued

(adjective)

Instrumental, masculine, singular of dānta

dānta - self-controlled, subdued, tamed

Past Passive Participle

From root dam (to tame, subdue)

Root: dam (class 4)

मुनिना (muninā) - by the sage, by the ascetic

(noun)

Instrumental, masculine, singular of muni

muni - sage, ascetic, seer

Root: man

संयतात्मना (saṁyatātmanā) - by one whose self is restrained, by one with a disciplined mind/self

(adjective)

Instrumental, masculine, singular of saṃyatātman

saṁyatātman - one whose self (ātman) is restrained, disciplined

Compound type : bahuvrīhi (saṃyata+ātman)

• saṃyata – restrained, controlled, disciplined
  adjective (masculine)
  Past Passive Participle
  From root yam with prefix sam
  Prefix: sam
  Root: yam (class 1)
• ātman – self, soul, spirit, essence
  noun (masculine)
  Root: an (class 2)

अजितम् (ajitam) - That which is difficult to conquer, often the mind or senses. (the unconquered, the unsurpassed)

(adjective)

Accusative, neuter, singular of ajita

ajita - unconquered, invincible, unsurpassed

Past Passive Participle

From root ji (to conquer) with negative prefix a

Compound type : nañ-tatpuruṣa (a+jita)

• a – not, non-, un-
  indeclinable
  Negative particle
• jita – conquered, won, subdued
  adjective (masculine)
  Past Passive Participle
  From root ji
  Root: ji (class 1)

Note: In context, likely refers to the mind or inner self, which is hard to conquer.

जेतुकामेन (jetukāmena) - Refers to the sage (muninā) as the agent. (by one wishing to conquer, by one desirous of victory)

(adjective)

Instrumental, masculine, singular of jetukāma

jetukāma - wishing to conquer, desirous of victory

Compound of infinitive jetu (to conquer) and kāma (desire)

Compound type : tatpuruṣa (jetu+kāma)

• jetu – to conquer, for conquering
  indeclinable
  Infinitive
  From root ji
  Root: ji (class 1)
• kāma – desire, wish, love
  noun (masculine)
  Root: kam (class 1)

भाव्यं (bhāvyaṁ) - it should be, one should become, it is to be

(adjective)

Nominative, neuter, singular of bhāvya

bhāvya - to be, to become, to be produced, to be destined

Gerundive

From root bhū (to be, to become)

Root: bhū (class 1)

Note: Acts as an impersonal verb construction, 'it is to be' or 'one should be'.

सङ्गेषु (saṅgeṣu) - in attachments, in associations, in connections

(noun)

Locative, masculine, plural of saṅga

saṅga - attachment, association, contact, connection

From root sañj (to cling, attach) with prefix sam

Prefix: sam

Root: sañj (class 1)

असङ्गिना (asaṅginā) - Agrees with muninā, referring to the sage. (by the unattached, by one free from attachment)

(adjective)

Instrumental, masculine, singular of asaṅgin

asaṅgin - unattached, free from attachment

From a (negative) + saṅgin (attached)

Compound type : nañ-tatpuruṣa (a+saṅgin)

• a – not, non-, un-
  indeclinable
  Negative particle
• saṅgin – attached, connected, adherent
  adjective (masculine)
  Agent noun from saṅga
  Root: sañj (class 1)