←
Ancient Greek βοῦς (affix)
←
Ancient Greek τυρός (affix)
→
Old English butere (derived)
→
Dalmatian butir (derived)
→
Middle Dutch boter (derived)
→
Icelandic butur (derived)
→
Italian burro (derived)
→
Macedonian путер (derived)
→
Maltese butir (derived)
→
West Flemish beuter (derived)