महाभारतः mahābhārataḥ - book-9, chapter-43, verse-16

कुमारश्च महावीर्यः कार्त्तिकेय इति स्मृतः ।
गाङ्गेयः पूर्वमभवन्महायोगबलान्वितः ॥१६॥

16. kumāraśca mahāvīryaḥ kārttikeya iti smṛtaḥ ,
gāṅgeyaḥ pūrvamabhavanmahāyogabalānvitaḥ.

16. kumāraḥ ca mahāvīryaḥ kārttikeyaḥ iti smṛtaḥ
gāṅgeyaḥ pūrvam abhavat mahāyoga-balānvitaḥ

16. ca mahāvīryaḥ kumāraḥ kārttikeyaḥ iti smṛtaḥ.
pūrvam gāṅgeyaḥ mahāyoga-balānvitaḥ abhavat

16. And Kumāra, the greatly valorous one, is known as Kārttikeya. Formerly, he, the son of Gaṅgā, came into being, endowed with great power from his spiritual discipline (yoga).

Words meanings summery:

• कुमारः (kumāraḥ) - Refers to Skanda (Kārttikeya). (boy, youth, prince, god Skanda)

• च (ca) - and

• महावीर्यः (mahāvīryaḥ) - of great valor, very powerful, mighty

• कार्त्तिकेयः (kārttikeyaḥ) - The name by which Kumāra is known. (Kārttikeya (son of Kṛttikās))

• इति (iti) - Used to introduce a name or direct speech/thought. (thus, in this manner, so called)

• स्मृतः (smṛtaḥ) - remembered, known, traditionally called

• गाङ्गेयः (gāṅgeyaḥ) - Refers to Skanda. (son of Gaṅgā)

• पूर्वम् (pūrvam) - formerly, previously, before

• अभवत् (abhavat) - became, came into being, was

• महायोग-बलान्वितः (mahāyoga-balānvitaḥ) - endowed with great power of yoga

Words meanings and morphology

कुमारः (kumāraḥ) - Refers to Skanda (Kārttikeya). (boy, youth, prince, god Skanda)

(proper noun)

Nominative, masculine, singular of kumāra

kumāra - boy, youth, prince, son, the god Skanda (Kārttikeya)

Note: Subject.

च (ca) - and

(indeclinable)

महावीर्यः (mahāvīryaḥ) - of great valor, very powerful, mighty

(adjective)

Nominative, masculine, singular of mahāvīrya

mahāvīrya - of great valor, very powerful, mighty, great strength

Compound type : bahuvrīhi (mahā+vīrya)

• mahā – great, large, mighty
  adjective
• vīrya – valor, strength, potency, power
  noun (neuter)

Note: Qualifies 'kumāraḥ'.

कार्त्तिकेयः (kārttikeyaḥ) - The name by which Kumāra is known. (Kārttikeya (son of Kṛttikās))

(proper noun)

Nominative, masculine, singular of kārttikeya

kārttikeya - Kārttikeya (a name of Skanda, referring to his nurturing by the Kṛttikās)

Derived from kṛttikā.

Note: Predicate nominative.

इति (iti) - Used to introduce a name or direct speech/thought. (thus, in this manner, so called)

(indeclinable)

Note: Follows the name Kārttikeya, indicating 'known as'.

स्मृतः (smṛtaḥ) - remembered, known, traditionally called

(adjective)

Nominative, masculine, singular of smṛta

smṛta - remembered, known, called, sacred tradition

Past Passive Participle

Derived from root smṛ (to remember).

Root: smṛ (class 1)

Note: Predicate adjective, implying 'is known as'.

गाङ्गेयः (gāṅgeyaḥ) - Refers to Skanda. (son of Gaṅgā)

(proper noun)

Nominative, masculine, singular of gāṅgeya

gāṅgeya - son of Gaṅgā, relating to Gaṅgā (a name of Bhīṣma, also Skanda)

Patronymic from Gaṅgā.

Note: Another name for Skanda.

पूर्वम् (pūrvam) - formerly, previously, before

(indeclinable)

Used adverbially here.

Note: Adverbial use.

अभवत् (abhavat) - became, came into being, was

(verb)

3rd person , singular, active, past imperfect (laṅ) of bhū

Imperfect tense, 3rd person singular, active voice.

Root: bhū (class 1)

Note: From root bhū (to be, become).

महायोग-बलान्वितः (mahāyoga-balānvitaḥ) - endowed with great power of yoga

(adjective)

Nominative, masculine, singular of mahāyogabalānvita

mahāyogabalānvita - endowed with great power of yoga

Compound type : bahuvrīhi (mahā+yoga+bala+anvita)

• mahā – great, large, mighty
  adjective
• yoga – spiritual discipline, union, effort
  noun (masculine)
• bala – strength, power, force
  noun (neuter)
• anvita – accompanied by, endowed with, possessed of
  adjective
  Past Passive Participle
  From root i with upasarga anu.
  Prefix: anu
  Root: i (class 2)

Note: Qualifies 'gāṅgeyaḥ'.