महाभारतः mahābhārataḥ - book-6, chapter-62, verse-37

स एष शाश्वतो देवः सर्वगुह्यमयः शिवः ।
वासुदेव इति ज्ञेयो यन्मां पृच्छसि भारत ॥३७॥

37. sa eṣa śāśvato devaḥ sarvaguhyamayaḥ śivaḥ ,
vāsudeva iti jñeyo yanmāṁ pṛcchasi bhārata.

37. saḥ eṣaḥ śāśvataḥ devaḥ sarva-guhyamayaḥ śivaḥ
vāsudeva iti jñeyaḥ yat mām pṛcchasi bhārata

37. bhārata yat mām pṛcchasi saḥ eṣaḥ śāśvataḥ devaḥ
sarva-guhyamayaḥ śivaḥ iti vāsudevaḥ jñeyaḥ

37. This eternal, divine being, who embodies all mysteries and is supremely auspicious (śiva), is to be known as Vasudeva—Him about whom you question me, O Bhārata (Dhritarashtra).

Words meanings summery:

• सः (saḥ) - He (referring to Krishna) (he, that)

• एषः (eṣaḥ) - this one (referring to Krishna) (this, this one)

• शाश्वतः (śāśvataḥ) - eternal (eternal, perpetual, everlasting)

• देवः (devaḥ) - divine being (god, divine, celestial being)

• सर्व-गुह्यमयः (sarva-guhyamayaḥ) - who embodies all mysteries (full of all secrets, consisting of all mysteries)

• शिवः (śivaḥ) - supremely auspicious (auspicious, benevolent, Shiva)

• वासुदेव (vāsudeva) - Vasudeva (Vasudeva (name of Krishna), son of Vasudeva)

• इति (iti) - as (to be known as) (thus, so, as)

• ज्ञेयः (jñeyaḥ) - is to be known (to be known, knowable, perceptible)

• यत् (yat) - whom (regarding whom) (which, whom, that)

• माम् (mām) - me (me (accusative))

• पृच्छसि (pṛcchasi) - you question (you ask)

• भारत (bhārata) - O Bhārata (Dhritarashtra) (O descendant of Bharata, O Bhārata)

Words meanings and morphology

सः (saḥ) - He (referring to Krishna) (he, that)

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

Note: Used with 'eṣaḥ' for emphasis, 'that very one'.

एषः (eṣaḥ) - this one (referring to Krishna) (this, this one)

(pronoun)

Nominative, masculine, singular of etad

etad - this, this one

Note: Refers to Lord Krishna, who is the subject of the sentence.

शाश्वतः (śāśvataḥ) - eternal (eternal, perpetual, everlasting)

(adjective)

Nominative, masculine, singular of śāśvata

śāśvata - eternal, perpetual, constant, permanent

Note: Describes the divine being.

देवः (devaḥ) - divine being (god, divine, celestial being)

(noun)

Nominative, masculine, singular of deva

deva - god, deity, divine, celestial being

Root: div (class 4)

Note: Refers to Krishna.

सर्व-गुह्यमयः (sarva-guhyamayaḥ) - who embodies all mysteries (full of all secrets, consisting of all mysteries)

(adjective)

Nominative, masculine, singular of sarva-guhyamaya

sarva-guhyamaya - consisting of all mysteries/secrets, full of all hidden truths

Compound type : tatpurusha (sarva+guhya+maya)

• sarva – all, every, whole
  pronoun
• guhya – secret, hidden, mysterious, to be kept secret
  adjective
  Gerundive/Future Passive Participle
  root guh ('to hide') + ya (suffix)
  Root: guh (class 1)
• maya – consisting of, full of
  suffix
  suffix mayaṭ

Note: Compound adjective describing Krishna.

शिवः (śivaḥ) - supremely auspicious (auspicious, benevolent, Shiva)

(adjective)

Nominative, masculine, singular of śiva

śiva - auspicious, benevolent, kind; name of a deity (Shiva)

Note: Describes Krishna's nature.

वासुदेव (vāsudeva) - Vasudeva (Vasudeva (name of Krishna), son of Vasudeva)

(proper noun)

Nominative, masculine, singular of vāsudeva

vāsudeva - Krishna, son of Vasudeva

Derived from Vasudeva (father's name) with patronymic suffix aṇ.

Note: The name by which Krishna is to be known.

इति (iti) - as (to be known as) (thus, so, as)

(indeclinable)

Note: Marks the preceding word as a name or description.

ज्ञेयः (jñeyaḥ) - is to be known (to be known, knowable, perceptible)

(adjective)

Nominative, masculine, singular of jñeya

jñeya - to be known, knowable, perceptible, what should be understood

Gerundive/Future Passive Participle

root jñā ('to know') + eya (suffix for FPP/Gerundive)

Root: jñā (class 9)

Note: Agrees with 'Vāsudeva'.

यत् (yat) - whom (regarding whom) (which, whom, that)

(pronoun)

Accusative, neuter, singular of yad

yad - which, who, what, that

Note: Functions as the object of 'pṛcchasi'.

माम् (mām) - me (me (accusative))

(pronoun)

Accusative, singular of aham

aham - I

Note: Object of 'pṛcchasi'.

पृच्छसि (pṛcchasi) - you question (you ask)

(verb)

2nd person , singular, active, present (laṭ) of prach

Present Indicative

root prach + si (second person singular present suffix)

Root: prach (class 6)

Note: Verb 'to ask'.

भारत (bhārata) - O Bhārata (Dhritarashtra) (O descendant of Bharata, O Bhārata)

(proper noun)

Vocative, masculine, singular of bhārata

bhārata - descendant of Bharata, relating to Bharata, India

Derived from Bharata with patronymic suffix.

Note: Addressed to Dhritarashtra.