महाभारतः mahābhārataḥ - book-4, chapter-12, verse-13

तत्र मल्लाः समापेतुर्दिग्भ्यो राजन्सहस्रशः ।
महाकाया महावीर्याः कालखञ्जा इवासुराः ॥१३॥

13. tatra mallāḥ samāpeturdigbhyo rājansahasraśaḥ ,
mahākāyā mahāvīryāḥ kālakhañjā ivāsurāḥ.

13. tatra mallāḥ samāpetuḥ digbhyaḥ rājan sahasraśaḥ
mahākāyāḥ mahāvīryāḥ kālakhañjāḥ iva asurāḥ

13. O King, there, from all directions, thousands of wrestlers gathered—huge-bodied and mighty, like the Kālakañja demons.

Words meanings summery:

• तत्र (tatra) - there (there, then, in that place)

• मल्लाः (mallāḥ) - wrestlers (wrestlers, strong men)

• समापेतुः (samāpetuḥ) - they gathered (they came together, they gathered)

• दिग्भ्यः (digbhyaḥ) - from all directions (from the directions, for the directions)

• राजन् (rājan) - O King (Virata) (O king)

• सहस्रशः (sahasraśaḥ) - in thousands (by thousands, in thousands)

• महाकायाः (mahākāyāḥ) - huge-bodied (huge-bodied, gigantic)

• महावीर्याः (mahāvīryāḥ) - mighty (of great strength, mighty, extremely valiant)

• कालखञ्जाः (kālakhañjāḥ) - the Kālakañja demons (Kalakhañja demons (a class of asuras))

• इव (iva) - like (like, as, as if)

• असुराः (asurāḥ) - demons (demons, evil spirits)

Words meanings and morphology

तत्र (tatra) - there (there, then, in that place)

(indeclinable)

मल्लाः (mallāḥ) - wrestlers (wrestlers, strong men)

(noun)

Nominative, masculine, plural of malla

malla - wrestler, pugilist, strong man

समापेतुः (samāpetuḥ) - they gathered (they came together, they gathered)

(verb)

3rd person , plural, active, past perfect (lit) of samāpat

Perfect tense, 3rd plural

Derived from root pat (to fall, fly) with prefixes sam and ā; perfect tense (lit)

Prefixes: sam+ā

Root: pat (class 1)

दिग्भ्यः (digbhyaḥ) - from all directions (from the directions, for the directions)

(noun)

Ablative, feminine, plural of diś

diś - direction, quarter, point of the compass

Note: Can be ablative or dative plural. Ablative 'from directions' fits context.

राजन् (rājan) - O King (Virata) (O king)

(noun)

Vocative, masculine, singular of rājan

rājan - king, ruler, sovereign

सहस्रशः (sahasraśaḥ) - in thousands (by thousands, in thousands)

(indeclinable)

Derived from sahasra (thousand) + śas suffix (distributive/adverbial)

महाकायाः (mahākāyāḥ) - huge-bodied (huge-bodied, gigantic)

(adjective)

Nominative, masculine, plural of mahākāya

mahākāya - having a large body, gigantic, enormous

Compound type : bahuvrihi (mahā+kāya)

• mahā – great, large, mighty
  adjective (feminine)
• kāya – body
  noun (masculine)

Note: Agrees with 'mallāḥ'.

महावीर्याः (mahāvīryāḥ) - mighty (of great strength, mighty, extremely valiant)

(adjective)

Nominative, masculine, plural of mahāvīrya

mahāvīrya - of great strength or prowess, mighty, very heroic

Compound type : bahuvrihi (mahā+vīrya)

• mahā – great, mighty
  adjective (feminine)
• vīrya – heroism, strength, prowess, energy
  noun (neuter)

Note: Agrees with 'mallāḥ'.

कालखञ्जाः (kālakhañjāḥ) - the Kālakañja demons (Kalakhañja demons (a class of asuras))

(proper noun)

Nominative, masculine, plural of kālakhañja

kālakhañja - name of a class of Asuras or demons

Note: Used as a comparison.

इव (iva) - like (like, as, as if)

(indeclinable)

Note: Particle of comparison.

असुराः (asurāḥ) - demons (demons, evil spirits)

(noun)

Nominative, masculine, plural of asura

asura - demon, evil spirit, opponent of the gods

Note: Used as part of the comparison with 'kālakhañjāḥ'.