Where does “Luisa” come from?

Luisa (Italian) comes from Old French Louise, from Old French Louis, from Latin Ludovīcus, from Old High German Hlūtwīg, from Proto-West Germanic Hlūdawīg, from Proto-West Germanic hlūd, from Proto-Germanic hlūdaz, from Proto-Indo-European ḱlewtos — to cover; to incline.

Ancestry of “Luisa”, step by step

StepLanguageWordMeaning
1Old FrenchLouise
2Old FrenchLouis
3LatinLudovīcus
4Old High GermanHlūtwīg
5Proto-West GermanicHlūdawīgmeaning famous in battle
6Proto-West Germanichlūdloud; sound
7Proto-Germanichlūdazloud; famous
8Proto-Indo-Europeanḱlewtosheard, famous
9Proto-Indo-Europeanḱlew-to hear
10Proto-Indo-Europeanḱel-to cover; to incline
Every word from Proto-Indo-European ḱel-Every word from Proto-Indo-European ḱlew-Every word from Proto-Indo-European ḱlewtos