महाभारतः mahābhārataḥ - book-13, chapter-16, verse-75

गुह्यानीमानि नामानि तण्डिर्भगवतोऽच्युत ।
देवप्रसादाद्देवेश पुरा प्राह महात्मने ॥७५॥

75. guhyānīmāni nāmāni taṇḍirbhagavato'cyuta ,
devaprasādāddeveśa purā prāha mahātmane.

75. guhyāni imāni nāmāni taṇḍiḥ bhagavataḥ acyuta
devaprasādāt deveśa purā prāha mahātmane

75. deveśa taṇḍiḥ devaprasādāt acyuta bhagavataḥ
imāni guhyāni nāmāni purā mahātmane prāha

75. O lord of gods, Taṇḍi formerly declared these secret names of the imperishable Lord (Śiva) to the great soul (Upamanyu), by the grace of the god (Śiva).

Words meanings summery:

• गुह्यानि (guhyāni) - secret, hidden

• इमानि (imāni) - these

• नामानि (nāmāni) - names

• तण्डिः (taṇḍiḥ) - Taṇḍi (name of a sage)

• भगवतः (bhagavataḥ) - of the Lord

• अच्युत (acyuta) - imperishable Lord (Śiva) (imperishable, unfailing, unmoving (epithet of Viṣṇu/Kṛṣṇa, and also Śiva))

• देवप्रसादात् (devaprasādāt) - by the grace of Śiva (by the grace of the god)

• देवेश (deveśa) - O Kṛṣṇa (O lord of gods)

• पुरा (purā) - formerly, anciently, in olden times

• प्राह (prāha) - declared, said, spoke

• महात्मने (mahātmane) - to Upamanyu, the great soul (to the great soul, to the high-minded one)

Words meanings and morphology

गुह्यानि (guhyāni) - secret, hidden

(adjective)

Nominative, neuter, plural of guhya

guhya - to be hidden, secret, mystic

Gerundive/Future Passive Participle

From √guh (to hide), with suffix -ya

Root: guh (class 1)

Note: Or accusative plural.

इमानि (imāni) - these

(pronoun)

Nominative, neuter, plural of idam

idam - this, these

Note: Or accusative plural.

नामानि (nāmāni) - names

(noun)

Nominative, neuter, plural of nāman

nāman - name, appellation

Note: Or accusative plural.

तण्डिः (taṇḍiḥ) - Taṇḍi (name of a sage)

(proper noun)

Nominative, masculine, singular of taṇḍi

taṇḍi - Taṇḍi (a Vedic sage, composer of the Taṇḍya Brāhmaṇa)

भगवतः (bhagavataḥ) - of the Lord

(noun)

Genitive, masculine, singular of bhagavat

bhagavat - adorable, divine, glorious, blessed, Lord

From bhaga (good fortune) + matup suffix

अच्युत (acyuta) - imperishable Lord (Śiva) (imperishable, unfailing, unmoving (epithet of Viṣṇu/Kṛṣṇa, and also Śiva))

(adjective)

Genitive, masculine, singular of acyuta

acyuta - firm, imperishable, unfailing, not fallen, an epithet of Viṣṇu or Kṛṣṇa; here, refers to Śiva

Past Passive Participle

A (negation) + √cyu (to move, fall) + kta (ppp suffix)

Prefix: a

Root: cyu (class 1)

Note: Qualifies 'bhagavataḥ'.

देवप्रसादात् (devaprasādāt) - by the grace of Śiva (by the grace of the god)

(noun)

Ablative, masculine, singular of devaprasāda

devaprasāda - grace of God

Compound type : tatpuruṣa (deva+prasāda)

• deva – god, deity
  noun (masculine)
  Root: div
• prasāda – grace, favor, calmness
  noun (masculine)
  From pra-√sad (to become clear, pleased)
  Prefix: pra
  Root: sad (class 1)

देवेश (deveśa) - O Kṛṣṇa (O lord of gods)

(noun)

Vocative, masculine, singular of deveśa

deveśa - lord of gods, an epithet of Viṣṇu, Śiva, Indra, etc.; here likely Kṛṣṇa

Compound type : tatpuruṣa (deva+īśa)

• deva – god, deity
  noun (masculine)
  Root: div
• īśa – lord, master
  noun (masculine)
  From √īś (to rule, be master)
  Root: īś (class 2)

पुरा (purā) - formerly, anciently, in olden times

(indeclinable)

प्राह (prāha) - declared, said, spoke

(verb)

3rd person , singular, active, perfect (liṭ) of pra-ah

Perfect tense form with prefix

Irregular perfect tense (liṭ) of √ah with prefix pra

Prefix: pra

Root: ah

महात्मने (mahātmane) - to Upamanyu, the great soul (to the great soul, to the high-minded one)

(noun)

Dative, masculine, singular of mahātman

mahātman - great-souled, high-minded

Compound type : bahuvrīhi (mahat+ātman)

• mahat – great, large
  adjective (neuter)
• ātman – soul, self
  noun (masculine)
  Root: an (class 2)

Note: Refers to Upamanyu in this context.