proper noun/silˈdabja/
Syldavia is feminine in Spanish.
Syldavia
“¿cuántos podrían distinguir las fallidas Yugoslavia y Checoslovaquia de las ficticias Syldavia y Borduria?” — How many could distinguish the failed Yugoslavia and Czechoslovakia from the fictitious Syldavia and Borduria?
Borrowed from French Syldavie, a blend of Transylvanie + Moldavie. Coined by Hergé in 1939 for King Ottokar's Sceptre.