महाभारतः mahābhārataḥ - book-6, chapter-19, verse-34

वज्रो नामैष तु व्यूहो दुर्भिदः सर्वतोमुखः ।
चापविद्युद्ध्वजो घोरो गुप्तो गाण्डीवधन्वना ॥३४॥

34. vajro nāmaiṣa tu vyūho durbhidaḥ sarvatomukhaḥ ,
cāpavidyuddhvajo ghoro gupto gāṇḍīvadhanvanā.

34. vajraḥ nāma eṣaḥ tu vyūhaḥ durbhidaḥ sarvatomukhaḥ
cāpavidyuddhvajaḥ ghoraḥ guptaḥ gāṇḍīvadhanvanā

34. eṣaḥ tu vajraḥ nāma vyūhaḥ durbhidaḥ sarvatomukhaḥ
cāpavidyuddhvajaḥ ghoraḥ gāṇḍīvadhanvanā guptaḥ

34. This formation (vyūha), named Vajra, is indeed impenetrable and faces all directions. It is formidable with bows like lightning and banners, and is protected by Arjuna, the wielder of the Gāṇḍīva bow.

Words meanings summery:

• वज्रः (vajraḥ) - a military formation (thunderbolt; a specific military formation or array of troops)

• नाम (nāma) - by name, named; indeed, truly

• एषः (eṣaḥ) - this, this one

• तु (tu) - but, indeed, however

• व्यूहः (vyūhaḥ) - formation, array, disposition of troops

• दुर्भिदः (durbhidaḥ) - impenetrable, difficult to break or penetrate

• सर्वतोमुखः (sarvatomukhaḥ) - facing all directions, having mouths or faces everywhere

• चापविद्युद्ध्वजः (cāpavidyuddhvajaḥ) - having bows as lightning and banners

• घोरः (ghoraḥ) - formidable, dreadful, terrible

• गुप्तः (guptaḥ) - protected, guarded, hidden

• गाण्डीवधन्वना (gāṇḍīvadhanvanā) - by Arjuna, the wielder of the Gāṇḍīva bow (by the wielder of the Gāṇḍīva bow)

Words meanings and morphology

वज्रः (vajraḥ) - a military formation (thunderbolt; a specific military formation or array of troops)

(noun)

Nominative, masculine, singular of vajra

vajra - thunderbolt, diamond; a specific military formation

नाम (nāma) - by name, named; indeed, truly

(indeclinable)

एषः (eṣaḥ) - this, this one

(pronoun)

Nominative, masculine, singular of etad

etad - this

तु (tu) - but, indeed, however

(indeclinable)

व्यूहः (vyūhaḥ) - formation, array, disposition of troops

(noun)

Nominative, masculine, singular of vyūha

vyūha - formation, array, disposition of troops

Prefix: vi

Root: ūh (class 1)

दुर्भिदः (durbhidaḥ) - impenetrable, difficult to break or penetrate

(adjective)

Nominative, masculine, singular of durbhid

durbhid - impenetrable, difficult to break

Compound type : tatpurusha (dur+bhid)

• dur – difficult, bad, hard
  indeclinable
• bhid – breaking, splitting
  noun (feminine)
  Root: bhid (class 7)

सर्वतोमुखः (sarvatomukhaḥ) - facing all directions, having mouths or faces everywhere

(adjective)

Nominative, masculine, singular of sarvatomukha

sarvatomukha - facing all directions

Compound type : bahuvrīhi (sarvataḥ+mukha)

• sarvataḥ – from all sides, everywhere
  indeclinable
• mukha – face, mouth, front
  noun (neuter)

चापविद्युद्ध्वजः (cāpavidyuddhvajaḥ) - having bows as lightning and banners

(adjective)

Nominative, masculine, singular of cāpavidyuddhvaja

cāpavidyuddhvaja - having bows (as sharp as) lightning and banners

Compound type : bahuvrīhi (cāpa+vidyut+dhvaja)

• cāpa – bow
  noun (neuter)
• vidyut – lightning
  noun (feminine)
• dhvaja – banner, flag
  noun (masculine)

घोरः (ghoraḥ) - formidable, dreadful, terrible

(adjective)

Nominative, masculine, singular of ghora

ghora - formidable, dreadful, terrible

गुप्तः (guptaḥ) - protected, guarded, hidden

(adjective)

Nominative, masculine, singular of gupta

gupta - protected, guarded, hidden

Past Passive Participle

Root: gup (class 10)

गाण्डीवधन्वना (gāṇḍīvadhanvanā) - by Arjuna, the wielder of the Gāṇḍīva bow (by the wielder of the Gāṇḍīva bow)

(noun)

Instrumental, masculine, singular of gāṇḍīvadhanvan

gāṇḍīvadhanvan - wielder of the Gāṇḍīva bow (Arjuna)

Compound type : bahuvrīhi (gāṇḍīva+dhanvan)

• gāṇḍīva – Gāṇḍīva (Arjuna's bow)
  proper noun (neuter)
• dhanvan – bow
  noun (neuter)