महाभारतः mahābhārataḥ - book-7, chapter-42, verse-3

गन्धर्वनगराकारं विधिवत्कल्पितं रथम् ।
तस्याभ्यशोभयत्केतुर्वाराहो राजतो महान् ॥३॥

3. gandharvanagarākāraṁ vidhivatkalpitaṁ ratham ,
tasyābhyaśobhayatketurvārāho rājato mahān.

3. gandharva-nagara-ākāram vidhivat-kalpitam ratham
tasya abhyaśobhayat ketuḥ vārāhaḥ rājataḥ mahān

3. vidhivat-kalpitam gandharva-nagara-ākāram ratham
tasya mahān rājataḥ vārāhaḥ ketuḥ abhyaśobhayat

3. His great silver boar-shaped banner adorned the chariot, which was constructed according to rules and resembled an ephemeral city of gandharvas.

Words meanings summery:

• गन्धर्व-नगर-आकारम् (gandharva-nagara-ākāram) - resembling an ephemeral city of gandharvas (an illusionary city) (having the form/appearance of a city of gandharvas)

• विधिवत्-कल्पितम् (vidhivat-kalpitam) - constructed according to rules (properly arranged, ritually prepared, made according to rules)

• रथम् (ratham) - chariot

• तस्य (tasya) - his (referring to the main character) (his, its, of that)

• अभ्यशोभयत् (abhyaśobhayat) - adorned (the chariot) (adorned, illuminated, shone upon)

• केतुः (ketuḥ) - banner (banner, flag, standard, emblem)

• वाराहः (vārāhaḥ) - boar-shaped (banner) (relating to a boar, boar-shaped, derived from a boar)

• राजतः (rājataḥ) - made of silver (banner) (silver, made of silver)

• महान् (mahān) - great (banner) (great, large, mighty)

Words meanings and morphology

गन्धर्व-नगर-आकारम् (gandharva-nagara-ākāram) - resembling an ephemeral city of gandharvas (an illusionary city) (having the form/appearance of a city of gandharvas)

(adjective)

Accusative, masculine, singular of gandharva-nagara-ākāra

gandharva-nagara-ākāra - having the form of a gandharva city (an illusory city in the sky)

Compound type : bahuvrihi (gandharva+nagara+ākāra)

• gandharva – a celestial musician, a class of demigods
  noun (masculine)
• nagara – city, town
  noun (neuter)
• ākāra – form, shape, appearance, semblance
  noun (masculine)
  Root: kṛ (class 8)

विधिवत्-कल्पितम् (vidhivat-kalpitam) - constructed according to rules (properly arranged, ritually prepared, made according to rules)

(adjective)

Accusative, masculine, singular of vidhivat-kalpita

vidhivat-kalpita - arranged according to rules, properly prepared

Compound type : tatpurusha (vidhivat+kalpita)

• vidhivat – according to rule, properly, ritually
  indeclinable
  Adverb from vidhi
  Root: dhā (class 3)
• kalpita – made, prepared, arranged, formed
  adjective
  Past Passive Participle
  From root kḷp
  Root: kḷp (class 1)

रथम् (ratham) - chariot

(noun)

Accusative, masculine, singular of ratha

ratha - chariot

Root: ram (class 1)

तस्य (tasya) - his (referring to the main character) (his, its, of that)

(pronoun)

Genitive, masculine, singular of tad

tad - that, this

अभ्यशोभयत् (abhyaśobhayat) - adorned (the chariot) (adorned, illuminated, shone upon)

(verb)

3rd person , singular, active, past imperfect (laṅ) of śubh

Imperfect tense

3rd singular active, causal form of root śubh with upasarga abhi

Prefix: abhi

Root: śubh (class 1)

केतुः (ketuḥ) - banner (banner, flag, standard, emblem)

(noun)

Nominative, masculine, singular of ketu

ketu - banner, flag, standard, emblem; comet

Root: cit (class 1)

वाराहः (vārāhaḥ) - boar-shaped (banner) (relating to a boar, boar-shaped, derived from a boar)

(adjective)

Nominative, masculine, singular of vārāha

vārāha - relating to a boar, belonging to a boar, boar-like

Derived from varāha (boar)

राजतः (rājataḥ) - made of silver (banner) (silver, made of silver)

(adjective)

Nominative, masculine, singular of rājata

rājata - made of silver, silver

Derived from rajata (silver)

महान् (mahān) - great (banner) (great, large, mighty)

(adjective)

Nominative, masculine, singular of mahat

mahat - great, large, mighty, extensive