महाभारतः mahābhārataḥ - book-6, chapter-40, verse-68

य इदं परमं गुह्यं मद्भक्तेष्वभिधास्यति ।
भक्तिं मयि परां कृत्वा मामेवैष्यत्यसंशयः ॥६८॥

68. ya idaṁ paramaṁ guhyaṁ madbhakteṣvabhidhāsyati ,
bhaktiṁ mayi parāṁ kṛtvā māmevaiṣyatyasaṁśayaḥ.

68. yaḥ idam paramam guhyam madbhakteṣu abhidhāsyati
bhaktim mayi parām kṛtvā mām eva eṣyati asaṃśayaḥ

68. yaḥ madbhakteṣu idam paramam guhyam abhidhāsyati,
mayi parām bhaktim kṛtvā,
asaṃśayaḥ mām eva eṣyati.

68. He who will explain this supreme secret among My devotees (bhakta), having cultivated supreme devotion (bhakti) for Me, will undoubtedly come to Me alone.

Words meanings summery:

• यः (yaḥ) - who, which

• इदम् (idam) - this (referring to the discourse of the Bhagavad Gītā) (this, this teaching)

• परमम् (paramam) - supreme, highest, excellent

• गुह्यम् (guhyam) - secret, mysterious

• मद्भक्तेषु (madbhakteṣu) - among My devotees

• अभिधास्यति (abhidhāsyati) - will explain, will declare, will describe

• भक्तिम् (bhaktim) - devotion, worship

• मयि (mayi) - in Me, towards Me

• पराम् (parām) - supreme, highest

• कृत्वा (kṛtvā) - having cultivated or developed (having done, having made, having performed)

• माम् (mām) - Me

• एव (eva) - alone, only, indeed, certainly

• एष्यति (eṣyati) - will go, will come

• असंशयः (asaṁśayaḥ) - without doubt, undoubtedly

Words meanings and morphology

यः (yaḥ) - who, which

(pronoun)

Nominative, masculine, singular of yad

yad - who, which, what

relative pronoun

Note: Subject of `abhidhāsyati`.

इदम् (idam) - this (referring to the discourse of the Bhagavad Gītā) (this, this teaching)

(pronoun)

Accusative, neuter, singular of idam

idam - this

Note: Object of `abhidhāsyati`.

परमम् (paramam) - supreme, highest, excellent

(adjective)

Accusative, neuter, singular of parama

parama - supreme, highest, ultimate, most excellent

superlative of `para` (other, distant)

गुह्यम् (guhyam) - secret, mysterious

(noun)

Accusative, neuter, singular of guhya

guhya - secret, hidden, mysterious

gerundive

gerundive (future passive participle) from root `guh` (to hide)

Root: guh (class 1)

Note: Object of `abhidhāsyati`.

मद्भक्तेषु (madbhakteṣu) - among My devotees

(adjective)

Locative, masculine, plural of madbhakta

madbhakta - My devotee, one devoted to Me

compound of `mat` (Me) and `bhakta` (devotee)

Compound type : tatpuruṣa (mat+bhakta)

• mat – Me
  pronoun
  ablative/genitive singular of `aham` (I), here used as a pronominal prefix meaning 'My'
• bhakta – devotee, devoted
  noun (masculine)
  Past Passive Participle
  from root `bhaj` (to worship, serve)
  Root: bhaj (class 1)

Note: Means 'among/in My devotees'.

अभिधास्यति (abhidhāsyati) - will explain, will declare, will describe

(verb)

3rd person , singular, active, future (lṛṭ) of abhi + dhā

future

3rd person singular future active of root `dhā` (class 3) with prefix `abhi`

Prefix: abhi

Root: dhā (class 3)

भक्तिम् (bhaktim) - devotion, worship

(noun)

Accusative, feminine, singular of bhakti

bhakti - devotion, faith, attachment, worship

from root `bhaj` (to worship, serve)

Root: bhaj (class 1)

Note: Object of `kṛtvā`.

मयि (mayi) - in Me, towards Me

(pronoun)

Locative, singular of aham

aham - I

पराम् (parām) - supreme, highest

(adjective)

Accusative, feminine, singular of parā

parā - supreme, highest, ultimate, excellent

feminine form of `para` or `parama`

Note: Agrees with `bhaktim`.

कृत्वा (kṛtvā) - having cultivated or developed (having done, having made, having performed)

(indeclinable)

absolutive (gerund)

absolutive form of root `kṛ` (class 8)

Root: kṛ (class 8)

माम् (mām) - Me

(pronoun)

Accusative, singular of aham

aham - I

एव (eva) - alone, only, indeed, certainly

(indeclinable)

Note: Emphatic particle.

एष्यति (eṣyati) - will go, will come

(verb)

3rd person , singular, active, future (lṛṭ) of i

future

3rd person singular future active of root `i` (class 2)

Root: i (class 2)

असंशयः (asaṁśayaḥ) - without doubt, undoubtedly

(adjective)

Nominative, masculine, singular of asaṃśaya

asaṁśaya - without doubt, doubtless, certain

compound of `a` (not) and `saṃśaya` (doubt)

Compound type : nañ-tatpuruṣa (a+saṃśaya)

• a – not, non-
  indeclinable
  negation prefix
• saṃśaya – doubt, uncertainty
  noun (masculine)
  from `sam` + `śī` (to lie, to doubt)
  Prefix: sam
  Root: śī (class 2)