महाभारतः mahābhārataḥ - book-10, chapter-8, verse-134

अयुतानि च तत्रासन्प्रयुतान्यर्बुदानि च ।
रक्षसां घोररूपाणां महतां क्रूरकर्मणाम् ॥१३४॥

134. ayutāni ca tatrāsanprayutānyarbudāni ca ,
rakṣasāṁ ghorarūpāṇāṁ mahatāṁ krūrakarmaṇām.

134. ayutāni ca tatra āsan prayutāni arbudāni ca
rakṣasām ghorarūpāṇām mahatām krūrakarmaṇām

134. tatra rakṣasām ghorarūpāṇām mahatām krūrakarmaṇām
ayutāni ca prayutāni ca arbudāni ca āsan

134. There were tens of thousands, millions, and hundreds of millions of rākṣasas there, who were of terrifying appearance, mighty, and performed cruel deeds.

Words meanings summery:

• अयुतानि (ayutāni) - tens of thousands

• च (ca) - and, also, moreover

• तत्र (tatra) - there, in that place

• आसन् (āsan) - they were, existed

• प्रयुतानि (prayutāni) - millions

• अर्बुदानि (arbudāni) - hundred millions, ten millions

• च (ca) - and, also, moreover

• रक्षसाम् (rakṣasām) - of rākṣasas, of demons

• घोररूपाणाम् (ghorarūpāṇām) - of those with terrible forms, of terrifying appearance

• महताम् (mahatām) - of the great, mighty, large

• क्रूरकर्मणाम् (krūrakarmaṇām) - of those with cruel deeds, of cruel actions

Words meanings and morphology

अयुतानि (ayutāni) - tens of thousands

(noun)

Nominative, neuter, plural of ayuta

ayuta - ten thousand, a myriad

च (ca) - and, also, moreover

(indeclinable)

तत्र (tatra) - there, in that place

(indeclinable)

आसन् (āsan) - they were, existed

(verb)

3rd person , plural, active, imperfect (laṅ) of as

imperfect past tense

3rd person plural, imperfect (laṅ), active voice

Root: as (class 2)

प्रयुतानि (prayutāni) - millions

(noun)

Nominative, neuter, plural of prayuta

prayuta - a million

अर्बुदानि (arbudāni) - hundred millions, ten millions

(noun)

Nominative, neuter, plural of arbuda

arbuda - a hundred million, ten million, a serpent, a tumor

च (ca) - and, also, moreover

(indeclinable)

रक्षसाम् (rakṣasām) - of rākṣasas, of demons

(noun)

Genitive, neuter, plural of rakṣas

rakṣas - rākṣasa, demon, evil being, guardian

घोररूपाणाम् (ghorarūpāṇām) - of those with terrible forms, of terrifying appearance

(adjective)

Genitive, masculine, plural of ghorarūpa

ghorarūpa - having a terrible form or shape

Compound type : bahuvrīhi (ghora+rūpa)

• ghora – terrible, dreadful, fearful, formidable
  adjective (masculine)
• rūpa – form, shape, appearance, beauty
  noun (neuter)

महताम् (mahatām) - of the great, mighty, large

(adjective)

Genitive, masculine, plural of mahat

mahat - great, large, mighty, extensive, noble

क्रूरकर्मणाम् (krūrakarmaṇām) - of those with cruel deeds, of cruel actions

(adjective)

Genitive, masculine, plural of krūrakarman

krūrakarman - having cruel actions or deeds, ferocious, atrocious

Compound type : bahuvrīhi (krūra+karman)

• krūra – cruel, harsh, fierce, dreadful
  adjective (masculine)
• karman – action, deed, work, ritual (karma)
  noun (neuter)