Etimoloji
Etymology tree Proto-Indo-European *bʰew-der.? Proto-Germanic *bautaną Frankish *bautander.? Old French botebor. Old Czech botbor. Old Polish obućinflu. Old Polish bot Polish but Proto-Indo-European *-kos Proto-Slavic *-kъ Proto-Slavic *-ъkъ Old Polish -ek Polish -ek Polish butek From but + -ek.