महाभारतः mahābhārataḥ - book-1, chapter-127, verse-13

आग्नेयः कृत्तिकापुत्रो रौद्रो गाङ्गेय इत्यपि ।
श्रूयते भगवान्देवः सर्वगुह्यमयो गुहः ॥१३॥

13. āgneyaḥ kṛttikāputro raudro gāṅgeya ityapi ,
śrūyate bhagavāndevaḥ sarvaguhyamayo guhaḥ.

13. āgneyaḥ kṛttikāputraḥ raudraḥ gāṅgeyaḥ iti api
śrūyate bhagavān devaḥ sarvaguhyamayaḥ guhaḥ

13. Guha (Skanda/Kārtikeya) is also known as the son of Agni, the son of Kṛttikā, the son of Rudra, and the son of Gaṅgā. He is the divine lord, embodying all secrets.

Words meanings summery:

• आग्नेयः (āgneyaḥ) - son of Agni, relating to Agni

• कृत्तिकापुत्रः (kṛttikāputraḥ) - son of Kṛttikā

• रौद्रः (raudraḥ) - son of Rudra, fierce, dreadful

• गाङ्गेयः (gāṅgeyaḥ) - son of Gaṅgā

• इति (iti) - thus, so, in this manner

• अपि (api) - also, even, too

• श्रूयते (śrūyate) - is heard, is known, is called

• भगवान् (bhagavān) - the worshipful, divine, glorious lord

• देवः (devaḥ) - god, deity

• सर्वगुह्यमयः (sarvaguhyamayaḥ) - full of all secrets, embodying all mysteries

• गुहः (guhaḥ) - Guha (Skanda/Kārtikeya)

Words meanings and morphology

आग्नेयः (āgneyaḥ) - son of Agni, relating to Agni

(adjective)

Nominative, masculine, singular of āgneya

āgneya - relating to Agni, fiery, igneous; a descendant of Agni

Derived from 'Agni'.

कृत्तिकापुत्रः (kṛttikāputraḥ) - son of Kṛttikā

(noun)

Nominative, masculine, singular of kṛttikāputra

kṛttikāputra - son of Kṛttikā (Skanda/Kārtikeya)

Compound type : tatpuruṣa (kṛttikā+putra)

• kṛttikā – the Pleiades (a constellation), a nurse of Skanda
  noun (feminine)
• putra – son
  noun (masculine)

रौद्रः (raudraḥ) - son of Rudra, fierce, dreadful

(adjective)

Nominative, masculine, singular of raudra

raudra - relating to Rudra, fierce, dreadful; a son of Rudra

Derived from 'Rudra'.

गाङ्गेयः (gāṅgeyaḥ) - son of Gaṅgā

(noun)

Nominative, masculine, singular of gāṅgeya

gāṅgeya - son of Gaṅgā (e.g., Bhīṣma, Kārtikeya)

Derived from 'Gaṅgā'.

इति (iti) - thus, so, in this manner

(indeclinable)

अपि (api) - also, even, too

(indeclinable)

श्रूयते (śrūyate) - is heard, is known, is called

(verb)

3rd person , singular, passive, present (laṭ) of śru

Root of class 5, passive voice.

Root: śru (class 5)

भगवान् (bhagavān) - the worshipful, divine, glorious lord

(adjective)

Nominative, masculine, singular of bhagavat

bhagavat - fortunate, glorious, divine, worshipful, holy

देवः (devaḥ) - god, deity

(noun)

Nominative, masculine, singular of deva

deva - god, deity, divine being

सर्वगुह्यमयः (sarvaguhyamayaḥ) - full of all secrets, embodying all mysteries

(adjective)

Nominative, masculine, singular of sarvaguhyamaya

sarvaguhyamaya - consisting of or full of all secrets

Compound type : tatpuruṣa (sarva+guhya+maya)

• sarva – all, every, whole
  adjective (masculine)
• guhya – secret, hidden, mysterious
  adjective (neuter)
  Gerundive
  Derived from the root 'guh'.
  Root: guh (class 1)
• maya – consisting of, full of
  suffix (masculine)

गुहः (guhaḥ) - Guha (Skanda/Kārtikeya)

(proper noun)

Nominative, masculine, singular of guha

guha - a name of Skanda or Kārtikeya, meaning 'the mysterious one' or 'born in a secret place'

Derived from the root 'guh' (to hide).

Root: guh (class 1)