köken: Etymology tree Pre-Greekbor.? Ancient Greek χᾰ́λῐξ (khắlĭx)bor.? substratebor.? Early Medieval Latin calx Proto-Indo-European *-yósder. Proto-Indo-European *-éyos Proto-Italic *-ejos Proto-Italic *-eos Early Medieval Latin -eus Early Medieval Latin calceus Proto-Indo-European *-h₂ Proto-Indo-European *-eh₂ Proto-Italic *-ā Early Medieval Latin -a Early Medieval Latin calcea Italian calza…