Where does “カサブランカ” come from?

カサブランカ (Japanese) comes from Spanish Casablanca, from Portuguese Casa Branca, from English White House — The official home and workplace of the President of the United States of America.

Ancestry of “カサブランカ”, step by step

StepLanguageWordMeaning
1SpanishCasablanca
2PortugueseCasa BrancaWhite House the official residence of the President of the United States of America
3EnglishWhite HouseThe official home and workplace of the President of the United States of America
Every word from English White HouseEvery word from Portuguese Casa BrancaEvery word from Spanish Casablanca