महाभारतः mahābhārataḥ - book-12, chapter-224, verse-7

अधीत्य वेदानखिलान्साङ्गोपनिषदस्तथा ।
अन्विच्छन्नैष्ठिकं कर्म धर्मनैपुणदर्शनात् ॥७॥

7. adhītya vedānakhilānsāṅgopaniṣadastathā ,
anvicchannaiṣṭhikaṁ karma dharmanaipuṇadarśanāt.

7. adhītya vedān akhilān sa-aṅga-upaniṣadaḥ tathā
anvicchan naiṣṭhikam karma dharma-naipuṇa-darśanāt

7. akhilān sa-aṅga-upaniṣadaḥ vedān tathā adhītya,
dharma-naipuṇa-darśanāt naiṣṭhikam karma anvicchan

7. Having thoroughly studied all the Vedas, along with their auxiliary branches and the Upaniṣads, he was searching for the ultimate prescribed action (karma), motivated by his insight into the intricacies of natural law (dharma).

Words meanings summery:

• अधीत्य (adhītya) - having studied, having learned

• वेदान् (vedān) - the Vedas (sacred texts)

• अखिलान् (akhilān) - all, complete, entire

• स-अङ्ग-उपनिषदः (sa-aṅga-upaniṣadaḥ) - with their auxiliary branches and Upanishads

• तथा (tathā) - as well as (thus, in that manner, also, and)

• अन्विच्छन् (anvicchan) - searching, seeking, pursuing

• नैष्ठिकम् (naiṣṭhikam) - ultimate prescribed action (ultimate, final, perfectly performed, pertaining to a definite conclusion)

• कर्म (karma) - ultimate prescribed action (karma) (in a spiritual sense) (action, deed, ritual, destiny (karma))

• धर्म-नैपुण-दर्शनात् (dharma-naipuṇa-darśanāt) - motivated by his insight into the intricacies of natural law (dharma) (from the perception of skill in natural law)

Words meanings and morphology

अधीत्य (adhītya) - having studied, having learned

(indeclinable)

Absolutive (gerund)

Absolutive form of 'adhi-i' (root 'i' with prefix 'adhi').

Prefix: adhi

Root: i (class 2)

वेदान् (vedān) - the Vedas (sacred texts)

(noun)

Accusative, masculine, plural of veda

veda - knowledge, sacred knowledge, especially the four Vedas.

From root 'vid' meaning 'to know'.

Root: vid (class 2)

अखिलान् (akhilān) - all, complete, entire

(adjective)

Accusative, masculine, plural of akhila

akhila - whole, entire, complete, all.

Compound: 'a' (not) + 'khila' (gap, remnant).

स-अङ्ग-उपनिषदः (sa-aṅga-upaniṣadaḥ) - with their auxiliary branches and Upanishads

(noun)

Accusative, feminine, plural of sa-aṅga-upaniṣad

sa-aṅga-upaniṣad - together with the auxiliary branches (Vedāṅgas) and Upanishads.

Bahuvrīhi compound: 'sa' (with) + 'aṅga' (auxiliary branches) + 'upaniṣad' (Upanishad).

Compound type : bahuvrīhi (sa+aṅga+upaniṣad)

• sa – with, together with
  indeclinable
• aṅga – limb, auxiliary branch, constituent part (referring to the six Vedāṅgas)
  noun (neuter)
• upaniṣad – secret teaching, mystical doctrine, a class of philosophical treatises of the Vedas.
  noun (feminine)
  From 'upa-ni-sad' meaning 'to sit down near (a teacher)'.
  Prefixes: upa+ni
  Root: sad (class 1)

तथा (tathā) - as well as (thus, in that manner, also, and)

(indeclinable)

अन्विच्छन् (anvicchan) - searching, seeking, pursuing

(adjective)

Nominative, masculine, singular of anvicchat

anvicchat - searching, seeking, following, pursuing.

Present participle (active voice)

Present participle of 'anu-iṣ' (root 'iṣ' 'to seek' with prefix 'anu').

Prefix: anu

Root: iṣ (class 6)

नैष्ठिकम् (naiṣṭhikam) - ultimate prescribed action (ultimate, final, perfectly performed, pertaining to a definite conclusion)

(adjective)

Accusative, neuter, singular of naiṣṭhika

naiṣṭhika - relating to 'niṣṭhā' (conclusion, finality, steadfastness), ultimate, perfect, dedicated to an ultimate aim.

Derived from 'niṣṭhā' (standing firm, conclusion) + 'ṭhak' suffix.

कर्म (karma) - ultimate prescribed action (karma) (in a spiritual sense) (action, deed, ritual, destiny (karma))

(noun)

Accusative, neuter, singular of karma

karma - action, deed, work, ritual, fate (karma), duty.

From root 'kṛ' meaning 'to do'.

Root: kṛ (class 8)

धर्म-नैपुण-दर्शनात् (dharma-naipuṇa-darśanāt) - motivated by his insight into the intricacies of natural law (dharma) (from the perception of skill in natural law)

(noun)

Ablative, neuter, singular of dharma-naipuṇa-darśana

dharma-naipuṇa-darśana - perception of skill/dexterity in natural law/righteousness.

Tatpurusha compound.

Compound type : tatpuruṣa (dharma+naipuṇa+darśana)

• dharma – natural law, righteousness, duty, virtue, constitution (dharma)
  noun (masculine)
  From root 'dhṛ' meaning 'to uphold, to sustain'.
  Root: dhṛ (class 1)
• naipuṇa – skill, dexterity, proficiency, intricacy
  noun (neuter)
  Derived from 'nipuṇa' (skillful) + 'aṇ' suffix.
• darśana – seeing, perceiving, showing, doctrine, insight, vision.
  noun (neuter)
  From root 'dṛś' meaning 'to see'.
  Root: dṛś (class 1)