महाभारतः mahābhārataḥ - book-8, chapter-49, verse-69

अथर्वाङ्गिरसी ह्येषा श्रुतीनामुत्तमा श्रुतिः ।
अविचार्यैव कार्यैषा श्रेयःकामैर्नरैः सदा ॥६९॥

69. atharvāṅgirasī hyeṣā śrutīnāmuttamā śrutiḥ ,
avicāryaiva kāryaiṣā śreyaḥkāmairnaraiḥ sadā.

69. atharvāṅgirasī hi eṣā śrutīnām uttamā śrutiḥ
avicārya eva kāryā eṣā śreyaḥkāmaiḥ naraiḥ sadā

69. hi eṣā atharvāṅgirasī śrutiḥ śrutīnām uttamā
eṣā śreyaḥkāmaiḥ naraiḥ sadā avicārya eva kāryā

69. Indeed, this Atharvāṅgirasī revealed text (śruti) is the foremost among all revealed texts. It should always be implemented without hesitation by people who desire ultimate good (śreyaḥ).

Words meanings summery:

• अथर्वाङ्गिरसी (atharvāṅgirasī) - related to the Atharvaveda tradition (belonging to Atharvan and Aṅgiras, Atharvaṇa)

• हि (hi) - indeed, certainly (indeed, certainly, because, for)

• एषा (eṣā) - this (referring to the śruti) (this, this one (feminine))

• श्रुतीनाम् (śrutīnām) - of the revealed texts (of the scriptures, of the revealed texts, of the Vedas)

• उत्तमा (uttamā) - foremost, supreme (best, highest, supreme, excellent (feminine))

• श्रुतिः (śrutiḥ) - revealed text, scripture (śruti) (revealed text, scripture, Veda, hearing)

• अविचार्य (avicārya) - without deliberation, without hesitation (without deliberation, without consideration, without examining)

• एव (eva) - indeed, certainly (emphatic) (only, just, indeed, certainly)

• कार्या (kāryā) - should be implemented/practiced (to be done, to be performed, should be done (feminine))

• एषा (eṣā) - this (referring to the śruti, as the subject of kāryā) (this, this one (feminine))

• श्रेयःकामैः (śreyaḥkāmaiḥ) - by those who desire ultimate good (śreyaḥ) (by those desirous of good, by those seeking welfare)

• नरैः (naraiḥ) - by people (by men, by people)

• सदा (sadā) - always (always, ever, perpetually)

Words meanings and morphology

अथर्वाङ्गिरसी (atharvāṅgirasī) - related to the Atharvaveda tradition (belonging to Atharvan and Aṅgiras, Atharvaṇa)

(adjective)

Nominative, feminine, singular of atharvāṅgirasī

atharvāṅgirasī - belonging to Atharvan and Aṅgiras; Atharvaṇa, Atharvāṅgirasa; an Atharvan text

Feminine form of atharvāṅgirasa. Refers to the Atharvaveda tradition.

Compound type : dvandva (atharvan+aṅgiras)

• atharvan – name of an ancient sage; priest
  proper noun (masculine)
• aṅgiras – name of an ancient sage or a class of semi-divine beings
  proper noun (masculine)

Note: Qualifies śrutiḥ.

हि (hi) - indeed, certainly (indeed, certainly, because, for)

(indeclinable)

एषा (eṣā) - this (referring to the śruti) (this, this one (feminine))

(pronoun)

Nominative, feminine, singular of etad

etad - this, this one

Demonstrative pronoun.

श्रुतीनाम् (śrutīnām) - of the revealed texts (of the scriptures, of the revealed texts, of the Vedas)

(noun)

Genitive, feminine, plural of śruti

śruti - hearing, what is heard, revealed text, Veda, tradition

From root śru (to hear).

Root: śru (class 1)

Note: Part of a genitive of comparison (among).

उत्तमा (uttamā) - foremost, supreme (best, highest, supreme, excellent (feminine))

(adjective)

Nominative, feminine, singular of uttama

uttama - highest, best, supreme, excellent, chief

Superlative degree of ud (up) or ut.

Note: Qualifies śrutiḥ.

श्रुतिः (śrutiḥ) - revealed text, scripture (śruti) (revealed text, scripture, Veda, hearing)

(noun)

Nominative, feminine, singular of śruti

śruti - hearing, what is heard, revealed text, Veda, tradition

From root śru (to hear).

Root: śru (class 1)

Note: Predicate nominative.

अविचार्य (avicārya) - without deliberation, without hesitation (without deliberation, without consideration, without examining)

(indeclinable)

Absolutive

From root car with vi and ā, preceded by a (negation). Literally 'having not deliberated'.

Prefixes: vi+ā

Root: car (class 1)

Note: Functions adverbially.

एव (eva) - indeed, certainly (emphatic) (only, just, indeed, certainly)

(indeclinable)

Emphatic particle.

कार्या (kāryā) - should be implemented/practiced (to be done, to be performed, should be done (feminine))

(adjective)

Nominative, feminine, singular of kārya

kārya - to be done, to be performed, duty, business, action, effect

Gerundive (Potential Passive Participle)

From root kṛ (to do) with suffix -ya.

Root: kṛ (class 8)

Note: Expresses obligation ('should be done').

एषा (eṣā) - this (referring to the śruti, as the subject of kāryā) (this, this one (feminine))

(pronoun)

Nominative, feminine, singular of etad

etad - this, this one

Demonstrative pronoun.

Note: Subject of the passive kāryā.

श्रेयःकामैः (śreyaḥkāmaiḥ) - by those who desire ultimate good (śreyaḥ) (by those desirous of good, by those seeking welfare)

(adjective)

Instrumental, masculine, plural of śreyaḥkāma

śreyaḥkāma - desirous of good, seeking welfare, wishing for prosperity

Compound formed from śreyas (welfare, ultimate good) and kāma (desire, desirous).

Compound type : bahuvrīhi (śreyas+kāma)

• śreyas – good, excellence, welfare, ultimate good
  noun (neuter)
  Comparative of śrī (beauty, prosperity) or praśasya (praiseworthy).
• kāma – desire, wish, love, sensual pleasure
  noun (masculine)
  From root kam (to desire).
  Root: kam (class 1)

Note: Agent of the passive kāryā.

नरैः (naraiḥ) - by people (by men, by people)

(noun)

Instrumental, masculine, plural of nara

nara - man, person, human being

Root: nṛ

Note: Agent of the passive kāryā.

सदा (sadā) - always (always, ever, perpetually)

(indeclinable)

Adverbial indeclinable.