Where does “ルシタニア” come from?

ルシタニア (Japanese) comes from Latin Lūsitānia — A province of Roman Hispania, covering what is now southern Portugal and parts of western Spain such as Extremadura.

Ancestry of “ルシタニア”, step by step

StepLanguageWordMeaning
1LatinLūsitāniaA province of Roman Hispania, covering what is now southern Portugal and parts of western Spain such as Extremadura
Every word from Latin Lūsitānia