महाभारतः mahābhārataḥ - book-5, chapter-67, verse-21

अप्राप्यः केशवो राजन्निन्द्रियैरजितैर्नृभिः ।
आगमाधिगतो योगाद्वशी तत्त्वे प्रसीदति ॥२१॥

21. aprāpyaḥ keśavo rājannindriyairajitairnṛbhiḥ ,
āgamādhigato yogādvaśī tattve prasīdati.

21. aprāpyaḥ keśavaḥ rājan indriyaiḥ ajitaiḥ nṛbhiḥ
āgama adhigataḥ yogāt vaśī tattve prasīdati

21. O King, Keśava is unattainable by humans whose senses are uncontrolled. The master (vaśī), who is realized through sacred texts (āgama) and spiritual discipline (yoga), becomes pleased with the ultimate reality.

Words meanings summery:

• अप्राप्यः (aprāpyaḥ) - unattainable, inaccessible, not to be reached

• केशवः (keśavaḥ) - Keśava (a name of Viṣṇu/Kṛṣṇa)

• राजन् (rājan) - O king, ruler

• इन्द्रियैः (indriyaiḥ) - by the senses, by the organs of sense

• अजितैः (ajitaiḥ) - by the unconquered, by the uncontrolled

• नृभिः (nṛbhiḥ) - by men, by humans

• आगम (āgama) - sacred text, tradition, scripture

• अधिगतः (adhigataḥ) - understood, attained, known, realized

• योगात् (yogāt) - through spiritual discipline (yoga), from union

• वशी (vaśī) - controller, master, self-controlled person

• तत्त्वे (tattve) - in the ultimate reality (in truth, in reality, concerning the essence)

• प्रसीदति (prasīdati) - becomes pleased, is gracious, calms down

Words meanings and morphology

अप्राप्यः (aprāpyaḥ) - unattainable, inaccessible, not to be reached

(adjective)

Nominative, masculine, singular of aprāpya

aprāpya - unattainable, inaccessible, not to be reached

Gerundive (passive future participle)

Formed from 'a' (negative) + 'prāpya' (gerundive of pra-√āp)

Compound type : nañ-tatpuruṣa (na+prāpya)

• na – not, no, without
  indeclinable
• prāpya – to be obtained, attainable, reachable
  adjective
  Gerundive (passive future participle)
  From pra-√āp (to obtain) + -ya
  Prefix: pra
  Root: āp (class 5)

Note: Adjective modifying Keśavaḥ

केशवः (keśavaḥ) - Keśava (a name of Viṣṇu/Kṛṣṇa)

(proper noun)

Nominative, masculine, singular of keśava

keśava - Keśava, one having long or beautiful hair, slayer of Keśī (epithet of Kṛṣṇa/Viṣṇu)

Note: Subject of the sentence

राजन् (rājan) - O king, ruler

(noun)

Vocative, masculine, singular of rājan

rājan - king, ruler, sovereign

Root: rāj

Note: Addressing Dhṛtarāṣṭra

इन्द्रियैः (indriyaiḥ) - by the senses, by the organs of sense

(noun)

Instrumental, neuter, plural of indriya

indriya - sense organ, faculty of sense, organ of activity

From Indra + -iya; 'belonging to Indra' or 'power of Indra.'

Note: Instrument of action

अजितैः (ajitaiḥ) - by the unconquered, by the uncontrolled

(adjective)

Instrumental, neuter, plural of ajita

ajita - unconquered, unsurpassed, unsubdued

Formed from 'a' (negative) + 'jita' (PPP of √ji)

Compound type : nañ-tatpuruṣa (na+jita)

• na – not, no, without
  indeclinable
• jita – conquered, subdued, won
  adjective
  Past Passive Participle
  From √ji (to conquer) + -ta
  Root: ji (class 1)

Note: Adjective modifying 'indriyaiḥ'

नृभिः (nṛbhiḥ) - by men, by humans

(noun)

Instrumental, masculine, plural of nṛ

nṛ - man, person, male, human being

Root noun

Root: nṛ

Note: Agent by whom Keśava is unattainable

आगम (āgama) - sacred text, tradition, scripture

(noun)

of āgama

āgama - coming, arrival, acquisition, sacred tradition, scripture, knowledge

From ā-√gam (to come, approach) + -a

Prefix: ā

Root: gam (class 1)

अधिगतः (adhigataḥ) - understood, attained, known, realized

(adjective)

Nominative, masculine, singular of adhigata

adhigata - gone to, reached, obtained, comprehended, known

Past Passive Participle

From adhi-√gam (to go over, attain, comprehend) + -ta

Compound type : tatpuruṣa (adhi+gata)

• adhi – upon, over, above, in addition
  indeclinable
• gata – gone, reached, obtained, arrived
  adjective
  Past Passive Participle
  From √gam (to go) + -ta
  Root: gam (class 1)

Note: Modifies 'vaśī'

योगात् (yogāt) - through spiritual discipline (yoga), from union

(noun)

Ablative, masculine, singular of yoga

yoga - union, junction, application, effort, spiritual discipline, abstract meditation (yoga)

From √yuj (to join) + ghañ

Root: yuj (class 7)

Note: Expresses means or source

वशी (vaśī) - controller, master, self-controlled person

(noun)

Nominative, masculine, singular of vaśin

vaśin - master, controller, having power over, self-controlled

From vaśa (will, control) + -in

Root: vaś

Note: Subject of the second clause

तत्त्वे (tattve) - in the ultimate reality (in truth, in reality, concerning the essence)

(noun)

Locative, neuter, singular of tattva

tattva - truth, reality, essence, principle, true nature

From tad (that) + -tva (suffix for abstract noun)

Note: Locative of subject of delight

प्रसीदति (prasīdati) - becomes pleased, is gracious, calms down

(verb)

3rd person , singular, active, present (laṭ) of prasīdati

Present active

From pra-√sad (to sit down, settle)

Prefix: pra

Root: sad (class 1)

Note: Verb for 'vaśī'