महाभारतः mahābhārataḥ - book-1, chapter-199, verse-31

द्विपक्षगरुडप्रख्यैर्द्वारैर्घोरप्रदर्शनैः ।
गुप्तमभ्रचयप्रख्यैर्गोपुरैर्मन्दरोपमैः ॥३१॥

31. dvipakṣagaruḍaprakhyairdvārairghorapradarśanaiḥ ,
guptamabhracayaprakhyairgopurairmandaropamaiḥ.

31. dvipakṣagaruḍaprakhyaiḥ dvāraiḥ ghorapradarśanaiḥ
guptam abhracayaprakhyaiḥ gopuraiḥ mandaropamaiḥ

31. It was protected by its terrifying gates, which resembled two-winged Garuḍas, and by its gate-towers, which were like masses of clouds and equal to Mount Mandara.

Words meanings summery:

• द्विपक्षगरुडप्रख्यैः (dvipakṣagaruḍaprakhyaiḥ) - resembling two-winged Garuḍas

• द्वारैः (dvāraiḥ) - by gates

• घोरप्रदर्शनैः (ghorapradarśanaiḥ) - by those of terrifying appearance

• गुप्तम् (guptam) - protected, guarded

• अभ्रचयप्रख्यैः (abhracayaprakhyaiḥ) - resembling a mass of clouds

• गोपुरैः (gopuraiḥ) - by gate-towers

• मन्दरोपमैः (mandaropamaiḥ) - resembling Mount Mandara

Words meanings and morphology

द्विपक्षगरुडप्रख्यैः (dvipakṣagaruḍaprakhyaiḥ) - resembling two-winged Garuḍas

(adjective)

Instrumental, masculine, plural of dvipakṣagaruḍaprakhya

dvipakṣagaruḍaprakhya - resembling two-winged Garuḍas

Compound type : bahuvrīhi (dvi+pakṣa+garuḍa+prakhya)

• dvi – two
  numeral
• pakṣa – wing, side
  noun (masculine)
• garuḍa – Garuḍa (mythical bird, vehicle of Vishnu)
  proper noun (masculine)
• prakhya – resembling, like
  adjective (masculine)
  Prefix: pra
  Root: khyā

द्वारैः (dvāraiḥ) - by gates

(noun)

Instrumental, neuter, plural of dvāra

dvāra - gate, door, entrance

घोरप्रदर्शनैः (ghorapradarśanaiḥ) - by those of terrifying appearance

(adjective)

Instrumental, masculine, plural of ghorapradarśana

ghorapradarśana - terrifying appearance, dreadful to behold

Compound type : tatpuruṣa (ghora+pradarśana)

• ghora – dreadful, terrifying, terrible
  adjective (masculine)
• pradarśana – appearance, sight, exhibition
  noun (neuter)
  Prefix: pra
  Root: dṛś

गुप्तम् (guptam) - protected, guarded

(adjective)

Nominative, neuter, singular of gupta

gupta - protected, guarded, hidden

Past Passive Participle

Root: gup (class 1)

अभ्रचयप्रख्यैः (abhracayaprakhyaiḥ) - resembling a mass of clouds

(adjective)

Instrumental, masculine, plural of abhracayaprakhya

abhracayaprakhya - resembling a mass of clouds

Compound type : tatpuruṣa (abhra+caya+prakhya)

• abhra – cloud
  noun (neuter)
• caya – heap, pile, mass
  noun (masculine)
  Root: ci
• prakhya – resembling, like
  adjective (masculine)
  Prefix: pra
  Root: khyā

गोपुरैः (gopuraiḥ) - by gate-towers

(noun)

Instrumental, neuter, plural of gopura

gopura - gate-tower, city gate

मन्दरोपमैः (mandaropamaiḥ) - resembling Mount Mandara

(adjective)

Instrumental, masculine, plural of mandaropama

mandaropama - resembling Mount Mandara

Compound type : tatpuruṣa (mandara+upama)

• mandara – Mount Mandara (mythical mountain)
  proper noun (masculine)
• upama – likeness, comparison, resembling
  adjective (masculine)