Welsh caled

← Breton calet (cognate)

← Proto-Celtic *kaletos (inherited)

← Proto-Indo-European *kal- (derived)

← Latin callum (cognate)

← Middle Irish calath (cognate)

← Middle Irish calad (mention)

→ English Excalibur (mention)

→ English Kirkcaldy (mention)

→ Welsh caledu (affix)

→ Welsh caleted (suffix)

→ Welsh caletaf (suffix)

→ Welsh caletach (suffix)