महाभारतः mahābhārataḥ - book-1, chapter-17, verse-20

ततोऽम्बराच्चिन्तितमात्रमागतं महाप्रभं चक्रममित्रतापनम् ।
विभावसोस्तुल्यमकुण्ठमण्डलं सुदर्शनं भीममजय्यमुत्तमम् ॥२०॥

20. tato'mbarāccintitamātramāgataṁ; mahāprabhaṁ cakramamitratāpanam ,
vibhāvasostulyamakuṇṭhamaṇḍalaṁ; sudarśanaṁ bhīmamajayyamuttamam.

20. tataḥ ambarāt cintitamātram āgatam
mahāprabham cakram amitrātāpanam
vibhāvasoḥ tulyam akuṇṭhamaṇḍalam
sudarśanam bhīmam ajayyam uttamam

20. Then, merely by his thought, the discus of immense splendor, scorching to enemies, comparable to the sun, with an unblunted rim, terrible, unconquerable, and supreme, named Sudarshana, came from the sky.

Words meanings summery:

• ततः (tataḥ) - then (then, therefrom)

• अम्बरात् (ambarāt) - from the sky (from the sky, from the atmosphere)

• चिन्तितमात्रम् (cintitamātram) - merely by thought (merely thought of, as soon as thought)

• आगतम् (āgatam) - came, arrived (come, arrived)

• महाप्रभम् (mahāprabham) - of immense splendor (of great splendor/light)

• चक्रम् (cakram) - the discus (discus, wheel)

• अमित्रातापनम् (amitrātāpanam) - scorching its enemies (tormentor of enemies, scorching enemies)

• विभावसोः (vibhāvasoḥ) - of the sun (of the sun, of fire)

• तुल्यम् (tulyam) - comparable to (equal to, similar to)

• अकुण्ठमण्डलम् (akuṇṭhamaṇḍalam) - with an unblunted rim (with an unblunted/sharp edge or circumference)

• सुदर्शनम् (sudarśanam) - Sudarshana (the discus's name) (beautiful to behold, easy to see; name of Vishnu's discus)

• भीमम् (bhīmam) - terrible (terrible, fearful)

• अजय्यम् (ajayyam) - unconquerable (unconquerable, invincible)

• उत्तमम् (uttamam) - supreme (best, supreme, excellent)

Words meanings and morphology

ततः (tataḥ) - then (then, therefrom)

(indeclinable)

Note: Connects to the previous action.

अम्बरात् (ambarāt) - from the sky (from the sky, from the atmosphere)

(noun)

Ablative, neuter, singular of ambara

ambara - sky, atmosphere, clothing

Note: Indicates source of arrival.

चिन्तितमात्रम् (cintitamātram) - merely by thought (merely thought of, as soon as thought)

(adjective)

Nominative, neuter, singular of cintitamātra

cintitamātra - that which is only thought of, as soon as thought of

Compound type : bahuvrihi (cintita+mātra)

• cintita – thought, considered, meditated
  participle (neuter)
  past passive participle
  from root cint (to think)
  Root: cit (class 10)
• mātra – only, merely, size, measure
  indeclinable (neuter)

Note: Qualifies 'cakram', referring to its spontaneous appearance.

आगतम् (āgatam) - came, arrived (come, arrived)

(participle)

Nominative, neuter, singular of āgata

āgata - come, arrived, approached

past passive participle

from root gam with prefix ā

Prefix: ā

Root: gam (class 1)

Note: Predicate adjective for 'cakram'.

महाप्रभम् (mahāprabham) - of immense splendor (of great splendor/light)

(adjective)

Nominative, neuter, singular of mahāprabha

mahāprabha - of great light, greatly shining, splendid

Compound type : bahuvrihi (mahā+prabha)

• mahā – great, large, mighty, extensive
  indeclinable
• prabha – light, splendor, radiance, luster
  noun (masculine)

Note: Qualifies 'cakram'.

चक्रम् (cakram) - the discus (discus, wheel)

(noun)

Nominative, neuter, singular of cakra

cakra - wheel, discus, circle; the Sudarshana Chakra of Vishnu

Note: Subject of the sentence (implied verb 'was').

अमित्रातापनम् (amitrātāpanam) - scorching its enemies (tormentor of enemies, scorching enemies)

(adjective)

Nominative, neuter, singular of amitrātāpana

amitrātāpana - burning/scorching enemies, causing pain to foes

Compound type : tatpurusha (amitra+ātāpana)

• amitra – enemy, not-friend, foe
  noun (masculine)
  negative prefix 'a' + mitra
  Prefix: a
• ātāpana – heating, scorching, tormenting
  noun (masculine)
  action noun
  from root tap with prefix ā
  Prefix: ā
  Root: tap (class 1)

Note: Qualifies 'cakram'.

विभावसोः (vibhāvasoḥ) - of the sun (of the sun, of fire)

(noun)

Genitive, masculine, singular of vibhāvasu

vibhāvasu - fire, sun, moon, light-possessing, brilliant

Prefix: vi

Root: bhā (class 2)

Note: Possessive, used with 'tulyam'.

तुल्यम् (tulyam) - comparable to (equal to, similar to)

(adjective)

Nominative, neuter, singular of tulya

tulya - equal, like, similar, comparable, fit for

from root tul (to weigh)

Root: tul (class 10)

Note: Qualifies 'cakram', governing the genitive 'vibhāvasoḥ'.

अकुण्ठमण्डलम् (akuṇṭhamaṇḍalam) - with an unblunted rim (with an unblunted/sharp edge or circumference)

(adjective)

Nominative, neuter, singular of akuṇṭhamaṇḍala

akuṇṭhamaṇḍala - having an unblunted/sharp disc/edge/circumference

Compound type : bahuvrihi (a+kuṇṭha+maṇḍala)

• a – not, non-, un-
  indeclinable
  negative prefix
• kuṇṭha – blunt, dull, incapacitated, slow
  adjective (masculine)
  Root: kuṇṭh (class 1)
• maṇḍala – circle, disc, orb, circumference, rim, ring
  noun (neuter)

Note: Qualifies 'cakram'.

सुदर्शनम् (sudarśanam) - Sudarshana (the discus's name) (beautiful to behold, easy to see; name of Vishnu's discus)

(noun)

Nominative, neuter, singular of sudarśana

sudarśana - beautiful to behold, easy to see, auspicious to see; the name of Vishnu's discus

from su (good/easy) + darśana (seeing)

Compound type : tatpurusha (su+darśana)

• su – good, well, easy, excellent
  indeclinable
  prefix
• darśana – seeing, appearance, sight, vision
  noun (neuter)
  action noun
  from root dṛś (to see)
  Root: dṛś (class 1)

Note: The proper name of the discus, used as an adjective here.

भीमम् (bhīmam) - terrible (terrible, fearful)

(adjective)

Nominative, neuter, singular of bhīma

bhīma - terrible, formidable, dreadful, awful

from root bhī (to fear)

Root: bhī (class 3)

Note: Qualifies 'cakram'.

अजय्यम् (ajayyam) - unconquerable (unconquerable, invincible)

(adjective)

Nominative, neuter, singular of ajayya

ajayya - unconquerable, invincible, not to be subdued

gerundive/potential participle

from a (not) + jayya (to be conquered)

Compound type : tatpurusha (a+jayya)

• a – not, non-, un-
  indeclinable
  negative prefix
• jayya – to be conquered, conquerable, vanquishable
  gerundive (masculine)
  potential participle (gerundive)
  from root ji (to conquer)
  Root: ji (class 1)

Note: Qualifies 'cakram'.

उत्तमम् (uttamam) - supreme (best, supreme, excellent)

(adjective)

Nominative, neuter, singular of uttama

uttama - highest, best, chief, supreme, excellent, principal

superlative of ud

Note: Qualifies 'cakram'.