महाभारतः mahābhārataḥ - book-3, chapter-203, verse-48

तपोनित्येन दान्तेन मुनिना संयतात्मना ।
अजितं जेतुकामेन भाव्यं सङ्गेष्वसङ्गिना ॥४८॥

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

48. tapas-nityena dāntena muninā saṃyata-ātmanā
ajitam jetu-kāmena bhāvyam saṅgeṣu a-saṅginā

48. One who is constantly engaged in asceticism (tapas), self-controlled, a sage (muni) with a restrained self (ātman), desiring to conquer the unconquered, should be free from attachment (asaṅga) to worldly contacts (saṅga).

Words meanings summery:

• तपस्-नित्येन (tapas-nityena) - by one who is constantly devoted to asceticism (tapas) (by one who is constantly engaged in asceticism, by one whose constant practice is penance)

• दान्तेन (dāntena) - by one who is self-controlled (by a self-controlled one, by a subdued one)

• मुनिना (muninā) - by a sage (muni) (by a sage, by an ascetic)

• संयत-आत्मना (saṁyata-ātmanā) - by one with a restrained self (ātman) (by one whose self is restrained, by a self-controlled person)

• अजितम् (ajitam) - the unconquered (referring to internal foes like desire, anger etc.) (the unconquered, that which is not conquered)

• जेतु-कामेन (jetu-kāmena) - by one desiring to conquer (by one desiring to conquer, wishing to overcome)

• भाव्यम् (bhāvyam) - it should be (used impersonally to express an obligation or necessity) (it is to be, it should be, must be)

• सङ्गेषु (saṅgeṣu) - in worldly contacts or associations (saṅga) (in attachments, in contacts, in associations)

• अ-सङ्गिना (a-saṅginā) - by one who is free from attachment (asaṅga) (by one who is unattached, by one free from attachment)

Words meanings and morphology

तपस्-नित्येन (tapas-nityena) - by one who is constantly devoted to asceticism (tapas) (by one who is constantly engaged in asceticism, by one whose constant practice is penance)

(adjective)

Instrumental, masculine, singular of tapas-nitya

tapas-nitya - constantly engaged in asceticism, devoted to penance

Compound type : tatpurusha (tapas+nitya)

• tapas – asceticism, penance, austerity, heat
  noun (neuter)
  Derived from root √tap (to heat, to perform austerity).
  Root: tap (class 1)
• nitya – constant, eternal, perpetual, always
  adjective (masculine)

Note: Agrees with 'muninā'.

दान्तेन (dāntena) - by one who is self-controlled (by a self-controlled one, by a subdued one)

(adjective)

Instrumental, masculine, singular of dānta

dānta - self-controlled, subdued, tamed, calm

Past Passive Participle

Past passive participle of root √dam (to tame, to control).

Root: dam (class 4)

Note: Agrees with 'muninā'.

मुनिना (muninā) - by a sage (muni) (by a sage, by an ascetic)

(noun)

Instrumental, masculine, singular of muni

muni - sage, ascetic, seer, saint

संयत-आत्मना (saṁyata-ātmanā) - by one with a restrained self (ātman) (by one whose self is restrained, by a self-controlled person)

(adjective)

Instrumental, masculine, singular of saṃyata-ātman

saṁyata-ātman - one whose self is restrained, self-controlled, disciplined in spirit

Compound type : bahuvrīhi (saṃyata+ātman)

• saṃyata – restrained, controlled, disciplined
  adjective (masculine)
  Past Passive Participle
  Past passive participle of root √yam (to restrain) with prefix sam-.
  Prefix: sam
  Root: yam (class 1)
• ātman – self, soul, essence, breath
  noun (masculine)

Note: Agrees with 'muninā'.

अजितम् (ajitam) - the unconquered (referring to internal foes like desire, anger etc.) (the unconquered, that which is not conquered)

(adjective)

Accusative, neuter, singular of ajita

ajita - unconquered, invincible

Past Passive Participle

Past passive participle of root √ji (to conquer) with negative prefix a-.

Compound type : nañ-tatpurusha (a+jita)

• a – not, non-, un-
  indeclinable
  Negative prefix.
• jita – conquered, vanquished
  adjective (masculine)
  Past Passive Participle
  Past passive participle of root √ji (to conquer).
  Root: ji (class 1)

Note: Used here substantively as 'the unconquered'.

जेतु-कामेन (jetu-kāmena) - by one desiring to conquer (by one desiring to conquer, wishing to overcome)

(adjective)

Instrumental, masculine, singular of jetu-kāma

jetu-kāma - desiring to conquer, wishing to overcome

Compound type : tatpurusha (jetu+kāma)

• jetu – to conquer, in order to conquer
  indeclinable
  Infinitive
  Infinitive form of root √ji (to conquer).
  Root: ji (class 1)
• kāma – desire, wish, love
  noun (masculine)

Note: Agrees with 'muninā'.

भाव्यम् (bhāvyam) - it should be (used impersonally to express an obligation or necessity) (it is to be, it should be, must be)

(adjective)

Nominative, neuter, singular of bhāvya

bhāvya - to be, to become, destined to be, future

Gerundive (Passive Future Participle)

Gerundive form of root √bhū (to be).

Root: bhū (class 1)

Note: Used impersonally here. 'It should be [so] by [him who is described by the instrumental adjectives]'.

सङ्गेषु (saṅgeṣu) - in worldly contacts or associations (saṅga) (in attachments, in contacts, in associations)

(noun)

Locative, masculine, plural of saṅga

saṅga - attachment, contact, association, union

Derived from root √sañj (to cling, attach) with prefix sam-.

Prefix: sam

Root: sañj (class 1)

अ-सङ्गिना (a-saṅginā) - by one who is free from attachment (asaṅga) (by one who is unattached, by one free from attachment)

(adjective)

Instrumental, masculine, singular of a-saṅgin

a-saṅgin - unattached, free from attachment, detached

Compound type : nañ-tatpurusha (a+saṅgin)

• a – not, non-, un-
  indeclinable
  Negative prefix.
• saṅgin – attached, associated with, clinging to
  adjective (masculine)
  Agent Noun
  Derived from 'saṅga' (attachment) with the suffix '-in'.

Note: Agrees with 'muninā'. This instrumental phrase indicates the agent of the impersonal verb 'bhāvyam'.