Where does “Calvados” come from?

Calvados (Portuguese) comes from French Calvados, from Latin calvus, from Proto-Italic kalowos, from Proto-Indo-European klh₂wós — bald.

Ancestry of “Calvados”, step by step

StepLanguageWordMeaning
1FrenchCalvadoscalvados
2Latincalvusbald, hairless
3Proto-Italickalowos—
4Proto-Indo-Europeanklh₂wósbald
Every word from Proto-Indo-European klh₂wós →Every word from Proto-Italic kalowos →Every word from Latin calvus →