महाभारतः mahābhārataḥ - book-7, chapter-156, verse-9

सीमन्तमिव कुर्वाणां नभसः पावकप्रभाम् ।
व्यदृश्यतापतन्ती सा शक्रमुक्ता यथाशनिः ॥९॥

9. sīmantamiva kurvāṇāṁ nabhasaḥ pāvakaprabhām ,
vyadṛśyatāpatantī sā śakramuktā yathāśaniḥ.

9. sīmantam iva kurvāṇām nabhasaḥ pāvakaprabhām
vyadṛśyata āpatantī sā śakramuktā yathā aśaniḥ

9. pāvakaprabhām nabhasaḥ sīmantam iva kurvāṇām
sā āpatantī śakramuktā aśaniḥ yathā vyadṛśyata

9. That falling (mace), possessing the brilliance of fire, was seen as if making a parting line in the sky, like a thunderbolt released by Indra.

Words meanings summery:

• सीमन्तम् (sīmantam) - a line in the sky, like a parting in hair (parting line (of hair), boundary, limit)

• इव (iva) - like, as, as if

• कुर्वाणाम् (kurvāṇām) - making, doing, performing

• नभसः (nabhasaḥ) - of the sky, from the sky

• पावकप्रभाम् (pāvakaprabhām) - having the brilliance/luster of fire

• व्यदृश्यत (vyadṛśyata) - was seen, appeared

• आपतन्ती (āpatantī) - falling, descending

• सा (sā) - that (mace) (she, that)

• शक्रमुक्ता (śakramuktā) - released by Indra

• यथा (yathā) - as, just as, like, in which way

• अशनिः (aśaniḥ) - thunderbolt, lightning

Words meanings and morphology

सीमन्तम् (sīmantam) - a line in the sky, like a parting in hair (parting line (of hair), boundary, limit)

(noun)

Accusative, masculine, singular of sīmanta

sīmanta - parting of the hair, boundary, limit, frontier

इव (iva) - like, as, as if

(indeclinable)

कुर्वाणाम् (kurvāṇām) - making, doing, performing

(participle)

Accusative, feminine, singular of kurvāṇa

kurvāṇa - making, doing, performing

Present Active Participle (ātmanepada)

Derived from the root √kṛ (to do, make)

Root: kṛ (class 8)

नभसः (nabhasaḥ) - of the sky, from the sky

(noun)

Genitive, neuter, singular of nabhas

nabhas - sky, atmosphere, cloud, heaven

पावकप्रभाम् (pāvakaprabhām) - having the brilliance/luster of fire

(adjective)

Accusative, feminine, singular of pāvakaprabhā

pāvakaprabhā - having the brilliance of fire, fire-like luster

Compound formed from 'pāvaka' and 'prabhā'

Compound type : tatpuruṣa (pāvaka+prabhā)

• pāvaka – fire, pure, purifying
  noun (masculine)
  Derived from √pū (to purify)
  Root: pū (class 1)
• prabhā – light, splendor, brilliance, luster, ray
  noun (feminine)

व्यदृश्यत (vyadṛśyata) - was seen, appeared

(verb)

3rd person , singular, passive, imperfect (laṅ) of vyadṛśyata

Imperfect tense

Imperfect passive, 3rd person, singular of vi-√dṛś

Prefix: vi

Root: dṛś (class 1)

आपतन्ती (āpatantī) - falling, descending

(participle)

Nominative, feminine, singular of āpatantī

āpatantī - falling, descending, coming down

Present Active Participle

Derived from ā-√pat (to fall, to descend)

Prefix: ā

Root: pat (class 1)

सा (sā) - that (mace) (she, that)

(pronoun)

Nominative, feminine, singular of tad

tad - that, she, he, it

शक्रमुक्ता (śakramuktā) - released by Indra

(adjective)

Nominative, feminine, singular of śakramuktā

śakramuktā - released by Indra, thrown by Indra

Compound formed from 'śakra' and 'muktā'

Compound type : tatpuruṣa (śakra+muktā)

• śakra – Indra (king of gods), powerful, mighty
  proper noun (masculine)
• muktā – released, set free, thrown, discharged
  participle (feminine)
  Past Passive Participle
  Derived from √muc (to release, set free, throw)
  Root: muc (class 6)

यथा (yathā) - as, just as, like, in which way

(indeclinable)

अशनिः (aśaniḥ) - thunderbolt, lightning

(noun)

Nominative, masculine, singular of aśani

aśani - thunderbolt, lightning, an arrow