महाभारतः mahābhārataḥ - book-12, chapter-262, verse-27

तेषामपेततृष्णानां निर्णिक्तानां शुभात्मनाम् ।
चतुर्थ औपनिषदो धर्मः साधारणः स्मृतः ॥२७॥

27. teṣāmapetatṛṣṇānāṁ nirṇiktānāṁ śubhātmanām ,
caturtha aupaniṣado dharmaḥ sādhāraṇaḥ smṛtaḥ.

27. teṣām apetātṛṣṇānām nirṇiktānām śubhātmanām
caturthaḥ aupaniṣadaḥ dharmaḥ sādhāraṇaḥ smṛtaḥ

27. apetatṛṣṇānām nirṇiktānām śubhātmanām teṣām
caturthaḥ aupaniṣadaḥ sādhāraṇaḥ dharmaḥ smṛtaḥ

27. For those whose craving is gone, who are purified, and who possess pure intrinsic nature (ātman), the fourth Upanishadic natural law (dharma) is declared to be universal.

Words meanings summery:

• तेषाम् (teṣām) - of them, of those

• अपेततृष्णानाम् (apetatṛṣṇānām) - of those whose craving is gone, free from desire

• निर्णिक्तानाम् (nirṇiktānām) - of those who are purified, cleansed

• शुभात्मनाम् (śubhātmanām) - of those who possess pure intrinsic nature (ātman) (of those with pure selves, pure-minded, pure-souled)

• चतुर्थः (caturthaḥ) - fourth

• औपनिषदः (aupaniṣadaḥ) - Upanishadic, relating to the Upanishads

• धर्मः (dharmaḥ) - natural law (dharma) (natural law, intrinsic nature, righteous conduct, duty)

• साधारणः (sādhāraṇaḥ) - common, universal, general, pertaining to all

• स्मृतः (smṛtaḥ) - remembered, declared, taught, considered

Words meanings and morphology

तेषाम् (teṣām) - of them, of those

(pronoun)

Genitive, masculine, plural of tad

tad - that, those

Note: Qualifies the following genitive adjectives.

अपेततृष्णानाम् (apetatṛṣṇānām) - of those whose craving is gone, free from desire

(adjective)

Genitive, masculine, plural of apetatṛṣṇa

apetatṛṣṇa - one whose thirst/craving/desire is gone

Compound.

Compound type : bahuvrīhi (apeta+tṛṣṇa)

• apeta – gone away, departed, free from
  adjective (masculine)
  Past Passive Participle
  From `apa` (away) + root `i` (to go) + `kta` suffix.
  Prefix: apa
  Root: i (class 2)
• tṛṣṇa – thirst, craving, desire
  noun (feminine)

Note: Qualifies `teṣām`.

निर्णिक्तानाम् (nirṇiktānām) - of those who are purified, cleansed

(adjective)

Genitive, masculine, plural of nirṇikta

nirṇikta - purified, cleansed, washed off

Past Passive Participle

From `nir` (out) + root `nij` (to cleanse, purify) + `kta` suffix.

Prefix: nir

Root: nij (class 3)

शुभात्मनाम् (śubhātmanām) - of those who possess pure intrinsic nature (ātman) (of those with pure selves, pure-minded, pure-souled)

(adjective)

Genitive, masculine, plural of śubhātman

śubhātman - one with a pure soul/self, pure-minded, auspicious-souled

Compound.

Compound type : bahuvrīhi (śubha+ātman)

• śubha – pure, auspicious, good
  adjective (masculine)
• ātman – self, soul, spirit, intrinsic nature
  noun (masculine)

चतुर्थः (caturthaḥ) - fourth

(adjective)

Nominative, masculine, singular of caturtha

caturtha - fourth

Ordinal number from `catur` (four).

औपनिषदः (aupaniṣadaḥ) - Upanishadic, relating to the Upanishads

(adjective)

Nominative, masculine, singular of aupaniṣada

aupaniṣada - relating to the Upanishads, taught in the Upanishads

From `upaniṣad` + `aṇ` suffix.

धर्मः (dharmaḥ) - natural law (dharma) (natural law, intrinsic nature, righteous conduct, duty)

(noun)

Nominative, masculine, singular of dharma

dharma - natural law, intrinsic nature, constitution, duty, righteousness, virtue, custom, religion

From root `dhṛ` (to uphold, support) + `man` suffix.

Root: dhṛ (class 1)

साधारणः (sādhāraṇaḥ) - common, universal, general, pertaining to all

(adjective)

Nominative, masculine, singular of sādhāraṇa

sādhāraṇa - common, general, universal, ordinary, belonging to all

From `sādhāra` (holding together) + `aṇ` suffix.

स्मृतः (smṛtaḥ) - remembered, declared, taught, considered

(adjective)

Nominative, masculine, singular of smṛta

smṛta - remembered, recollected, thought of, declared, taught (as in Smṛti texts)

Past Passive Participle

From root `smṛ` (to remember) + `kta` suffix.

Root: smṛ (class 1)

Note: It implies an unstated `asti` (is).