महाभारतः mahābhārataḥ - book-12, chapter-316, verse-19

आकिंचन्यं सुसंतोषो निराशीष्ट्वमचापलम् ।
एतदाहुः परं श्रेय आत्मज्ञस्य जितात्मनः ॥१९॥

19. ākiṁcanyaṁ susaṁtoṣo nirāśīṣṭvamacāpalam ,
etadāhuḥ paraṁ śreya ātmajñasya jitātmanaḥ.

19. ākiṃcanyam su-saṃtoṣaḥ nir-āśīṣ-tvam a-cāpalam
etat āhuḥ param śreyaḥ ātma-jñasya jita-ātmanaḥ

19. ākiṃcanyam su-saṃtoṣaḥ nir-āśīṣ-tvam a-cāpalam
etat ātma-jñasya jita-ātmanaḥ param śreyaḥ āhuḥ

19. Non-possessiveness, great contentment, freedom from desires, and steadfastness – these qualities, they say, constitute the supreme welfare for one who knows the (ātman) self and has conquered the (ātman) self.

Words meanings summery:

• आकिंचन्यम् (ākiṁcanyam) - freedom from possessions, non-possessiveness (having nothing, poverty, non-possession)

• सु-संतोषः (su-saṁtoṣaḥ) - great contentment (great contentment, excellent satisfaction)

• निर्-आशीष्-त्वम् (nir-āśīṣ-tvam) - freedom from desires or expectations (freedom from wishes/desires, desirelessness)

• अ-चापलम् (a-cāpalam) - steadfastness, absence of fickleness (non-fickleness, steadfastness, absence of agitation)

• एतत् (etat) - these (referring to the preceding qualities) (this, these)

• आहुः (āhuḥ) - they declare (sages or scriptures) (they say, they declare)

• परम् (param) - supreme, ultimate (supreme, highest, ultimate)

• श्रेयः (śreyaḥ) - supreme welfare or ultimate good (welfare, good, prosperity, salvation)

• आत्म-ज्ञस्य (ātma-jñasya) - of one who knows the (ātman) self (of the knower of the self)

• जित-आत्मनः (jita-ātmanaḥ) - of one whose (ātman) self is controlled (of one who has conquered the self)

Words meanings and morphology

आकिंचन्यम् (ākiṁcanyam) - freedom from possessions, non-possessiveness (having nothing, poverty, non-possession)

(noun)

Nominative, neuter, singular of ākiṃcanya

ākiṁcanya - having nothing, poverty, non-possession, destitution

derived from akiṃcana (having nothing) with taddhita suffix ṣyañ

Note: One of the qualities.

सु-संतोषः (su-saṁtoṣaḥ) - great contentment (great contentment, excellent satisfaction)

(noun)

Nominative, masculine, singular of su-saṃtoṣa

su-saṁtoṣa - great contentment, excellent satisfaction

Compound type : tatpuruṣa (su+saṃtoṣa)

• su – good, well, excellent
  indeclinable
• saṃtoṣa – contentment, satisfaction, joy
  noun (masculine)
  action noun
  from root tuṣ (to be pleased) with prefix sam
  Prefix: sam
  Root: tuṣ (class 4)

Note: One of the qualities.

निर्-आशीष्-त्वम् (nir-āśīṣ-tvam) - freedom from desires or expectations (freedom from wishes/desires, desirelessness)

(noun)

Nominative, neuter, singular of nir-āśīṣ-tva

nir-āśīṣ-tva - desirelessness, freedom from wishes

derived with taddhita suffix tva from the compound nirāśīṣ

Compound type : tatpuruṣa (nirāśīṣ+tva)

• nirāśīṣ – free from wishes/desires
  adjective (feminine)
  Compound of nir (without) and āśīṣ (desire)
• tva – suffix for abstract nouns, -ness, -hood
  suffix (neuter)

Note: One of the qualities.

अ-चापलम् (a-cāpalam) - steadfastness, absence of fickleness (non-fickleness, steadfastness, absence of agitation)

(noun)

Nominative, neuter, singular of a-cāpala

a-cāpala - not fickle, steady, steadfastness

Compound type : nañ-tatpuruṣa (a+cāpala)

• a – not, un-, without
  indeclinable
• cāpala – fickleness, unsteadiness, agitation
  noun (neuter)
  derived from capala (fickle)

Note: One of the qualities.

एतत् (etat) - these (referring to the preceding qualities) (this, these)

(pronoun)

Nominative, neuter, singular of etad

etad - this, these

Note: Refers to the collective list of qualities as a singular concept.

आहुः (āhuḥ) - they declare (sages or scriptures) (they say, they declare)

(verb)

3rd person , plural, active, perfect (lit) of brū/ah

Root: brū (class 2)

Note: Refers to authorities who state this.

परम् (param) - supreme, ultimate (supreme, highest, ultimate)

(adjective)

Accusative, neuter, singular of para

para - supreme, highest, ultimate, other, further

Note: Qualifies śreyaḥ.

श्रेयः (śreyaḥ) - supreme welfare or ultimate good (welfare, good, prosperity, salvation)

(noun)

Accusative, neuter, singular of śreyas

śreyas - welfare, good, prosperity, salvation, superior

Note: Object of āhuḥ.

आत्म-ज्ञस्य (ātma-jñasya) - of one who knows the (ātman) self (of the knower of the self)

(noun)

Genitive, masculine, singular of ātma-jña

ātma-jña - knower of the self

Compound type : tatpuruṣa (ātman+jña)

• ātman – self, soul, essence, individual soul, Supreme Soul
  noun (masculine)
• jña – knowing, knower
  adjective (masculine)
  suffix for agent nouns
  from root jñā (to know)
  Root: jñā (class 9)

Note: Qualifies śreyaḥ by specifying for whom it is supreme.

जित-आत्मनः (jita-ātmanaḥ) - of one whose (ātman) self is controlled (of one who has conquered the self)

(adjective)

Genitive, masculine, singular of jita-ātman

jita-ātman - one who has conquered his self (mind, senses)

Compound type : bahuvrīhi (jita+ātman)

• jita – conquered, subdued, won
  adjective (masculine)
  Past Passive Participle
  from root ji (to conquer)
  Root: ji (class 1)
• ātman – self, soul, mind, body
  noun (masculine)

Note: Qualifies ātma-jñasya.