महाभारतः mahābhārataḥ - book-12, chapter-321, verse-15

तयोराह्निकवेलायां तस्य कौतूहलं त्वभूत् ।
इदं तदास्पदं कृत्स्नं यस्मिँल्लोकाः प्रतिष्ठिताः ॥१५॥

15. tayorāhnikavelāyāṁ tasya kautūhalaṁ tvabhūt ,
idaṁ tadāspadaṁ kṛtsnaṁ yasmiँllokāḥ pratiṣṭhitāḥ.

15. tayoḥ āhnika-velāyām tasya kautūhalam tu abhūt
idam tad-āspadam kṛtsnam yasmin lokāḥ pratiṣṭhitāḥ

15. tayoḥ āhnika-velāyām tasya kautūhalam tu abhūt idam kṛtsnam tad-āspadam [asti],
yasmin lokāḥ pratiṣṭhitāḥ

15. At the time of their (Nara and Nārāyaṇa's) daily rituals, indeed, a curiosity arose in him (Nārada). This entire foundation, upon which the worlds are established, is profound.

Words meanings summery:

• तयोः (tayoḥ) - Referring to Nara and Nārāyaṇa. (of the two, their (dual))

• आह्निक-वेलायाम् (āhnika-velāyām) - at the time of daily rituals/duties

• तस्य (tasya) - Referring to Nārada; here indicating where the curiosity arose (in him). (of him, his, in him)

• कौतूहलम् (kautūhalam) - curiosity, eagerness, wonder

• तु (tu) - but, indeed, on the other hand

• अभूत् (abhūt) - happened, came into being, was

• इदम् (idam) - Refers to the hermitage of Badarī, or the profound spiritual essence observed there. (this)

• तद्-आस्पदम् (tad-āspadam) - Refers to the spiritual foundation or profound nature of the place/beings. (that foundation, that basis)

• कृत्स्नम् (kṛtsnam) - entire, whole, complete

• यस्मिन् (yasmin) - in which, wherein

• लोकाः (lokāḥ) - worlds, regions, people

• प्रतिष्ठिताः (pratiṣṭhitāḥ) - established, founded, based

Words meanings and morphology

तयोः (tayoḥ) - Referring to Nara and Nārāyaṇa. (of the two, their (dual))

(pronoun)

Genitive, masculine, dual of tad

tad - that, this, he, she, it

Demonstrative pronoun.

Note: Refers to Nara and Nārāyaṇa implicitly from the context of Badarī's hermitage.

आह्निक-वेलायाम् (āhnika-velāyām) - at the time of daily rituals/duties

(noun)

Locative, feminine, singular of āhnika-velā

āhnika-velā - The time for daily observances or duties.

Compound of `āhnika` (daily, diurnal) and `velā` (time, period).

Compound type : tatpuruṣa (āhnika+velā)

• āhnika – daily, diurnal; related to a day
  adjective
  From `ahan` (day) + `ṭhak` suffix.
• velā – time, season, limit, shore
  noun (feminine)

Note: Indicates the time when Nārada's curiosity arose.

तस्य (tasya) - Referring to Nārada; here indicating where the curiosity arose (in him). (of him, his, in him)

(pronoun)

Genitive, masculine, singular of tad

tad - that, this, he, she, it

Demonstrative pronoun.

Note: Can be translated as 'in him' when referring to emotions.

कौतूहलम् (kautūhalam) - curiosity, eagerness, wonder

(noun)

Nominative, neuter, singular of kautūhala

kautūhala - curiosity, wonder, eager expectation, interest

From `kutūhala` (curiosity), with `aṇ` suffix.

Note: Subject of `abhūt`.

तु (tu) - but, indeed, on the other hand

(indeclinable)

Note: Used for emphasis here, translated as 'indeed'.

अभूत् (abhūt) - happened, came into being, was

(verb)

3rd person , singular, active, aorist (luṅ) of bhū

Aorist

From root `bhū` (to be), aorist form with augment `a-`.

Root: bhū (class 1)

इदम् (idam) - Refers to the hermitage of Badarī, or the profound spiritual essence observed there. (this)

(pronoun)

Nominative, neuter, singular of idam

idam - this, this one

Demonstrative pronoun.

तद्-आस्पदम् (tad-āspadam) - Refers to the spiritual foundation or profound nature of the place/beings. (that foundation, that basis)

(noun)

Nominative, neuter, singular of tad-āspada

tad-āspada - That place, that foundation, that support.

Compound of `tad` (that) and `āspada` (foundation, seat, place).

Compound type : karmadhāraya (tad+āspada)

• tad – that, this, he, she, it
  pronoun
• āspada – foundation, seat, place, support, object of
  noun (neuter)
  From `ā-pad` (to obtain, occupy).
  Prefix: ā
  Root: pad (class 4)

Note: Predicate nominative with implied 'is'.

कृत्स्नम् (kṛtsnam) - entire, whole, complete

(adjective)

Nominative, neuter, singular of kṛtsna

kṛtsna - whole, entire, complete, all

Root: kṛt

Note: Modifies `tad-āspadam`.

यस्मिन् (yasmin) - in which, wherein

(pronoun)

Locative, neuter, singular of yad

yad - which, what, who

Relative pronoun.

Note: Refers to `tad-āspadam` and introduces a relative clause.

लोकाः (lokāḥ) - worlds, regions, people

(noun)

Nominative, masculine, plural of loka

loka - world, realm, people, space

Note: Subject of `pratiṣṭhitāḥ`.

प्रतिष्ठिताः (pratiṣṭhitāḥ) - established, founded, based

(adjective)

Nominative, masculine, plural of pratiṣṭhita

pratiṣṭhita - established, founded, fixed, supported, standing firm

Past Passive Participle

From root `sthā` (to stand) with prefix `prati`.

Prefix: prati

Root: sthā (class 1)

Note: Agrees with `lokāḥ`.