महाभारतः mahābhārataḥ - book-7, chapter-172, verse-52

स तपस्तीव्रमातस्थे मैनाकं गिरिमास्थितः ।
ऊर्ध्वबाहुर्महातेजा ज्वलनादित्यसंनिभः ॥५२॥

52. sa tapastīvramātasthe mainākaṁ girimāsthitaḥ ,
ūrdhvabāhurmahātejā jvalanādityasaṁnibhaḥ.

52. saḥ tapaḥ tīvram ātasthe mainākam girim āsthitaḥ
ūrdhvabāhuḥ mahātejāḥ jvalanādityasaṃnibhaḥ

52. saḥ ūrdhvabāhuḥ mahātejāḥ jvalanādityasaṃnibhaḥ
mainākam girim āsthitaḥ tīvram tapaḥ ātasthe

52. He, with his arms raised upwards, greatly effulgent and resembling the blazing sun, undertook intense asceticism (tapas) while situated on Mount Maināka.

Words meanings summery:

• सः (saḥ) - he

• तपः (tapaḥ) - asceticism, penance, austerity (tapas)

• तीव्रम् (tīvram) - intense, severe, strong

• आतस्थे (ātasthe) - performed, undertook, engaged in

• मैनाकम् (mainākam) - Maināka (mountain)

• गिरिम् (girim) - mountain

• आस्थितः (āsthitaḥ) - situated, standing, abiding

• ऊर्ध्वबाहुः (ūrdhvabāhuḥ) - with uplifted arms, having raised arms

• महातेजाः (mahātejāḥ) - greatly effulgent, highly luminous

• ज्वलनादित्यसंनिभः (jvalanādityasaṁnibhaḥ) - resembling the blazing sun

Words meanings and morphology

सः (saḥ) - he

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

तपः (tapaḥ) - asceticism, penance, austerity (tapas)

(noun)

Accusative, neuter, singular of tapas

tapas - asceticism, penance, austerity (tapas)

तीव्रम् (tīvram) - intense, severe, strong

(adjective)

Accusative, neuter, singular of tīvra

tīvra - intense, severe, strong, sharp

आतस्थे (ātasthe) - performed, undertook, engaged in

(verb)

3rd person , singular, middle, perfect (liṭ) of sthā

Prefix: ā

Root: sthā (class 1)

मैनाकम् (mainākam) - Maināka (mountain)

(proper noun)

Accusative, masculine, singular of maināka

maināka - Maināka (name of a mountain)

गिरिम् (girim) - mountain

(noun)

Accusative, masculine, singular of giri

giri - mountain, hill

आस्थितः (āsthitaḥ) - situated, standing, abiding

(participle)

Nominative, masculine, singular of sthā

sthā - to stand, be situated

Past Passive Participle

Formed from root sthā with prefix ā and suffix -ta

Prefix: ā

Root: sthā (class 1)

ऊर्ध्वबाहुः (ūrdhvabāhuḥ) - with uplifted arms, having raised arms

(adjective)

Nominative, masculine, singular of ūrdhvabāhu

ūrdhvabāhu - having uplifted arms

Compound type : bahuvrīhi (ūrdhva+bāhu)

• ūrdhva – upwards, elevated, raised
  adjective
• bāhu – arm
  noun (masculine)

महातेजाः (mahātejāḥ) - greatly effulgent, highly luminous

(adjective)

Nominative, masculine, singular of mahātejas

mahātejas - greatly effulgent, very splendid, mighty

Compound type : bahuvrīhi (mahat+tejas)

• mahat – great, large, mighty
  adjective
• tejas – splendor, effulgence, power
  noun (neuter)

ज्वलनादित्यसंनिभः (jvalanādityasaṁnibhaḥ) - resembling the blazing sun

(adjective)

Nominative, masculine, singular of jvalanādityasaṃnibha

jvalanādityasaṁnibha - resembling the blazing sun

Compound type : tatpurusha (jvalana+āditya+saṃnibha)

• jvalana – blazing, burning; fire
  noun (masculine)
  Root: jval (class 1)
• āditya – sun
  noun (masculine)
• saṃnibha – resembling, like, similar
  adjective