←
Old English cǣġ (inherited)
←
Old English cǣġe (mention)
←
Old English cǣga (mention)
←
Middle Dutch keige (cognate)
←
Middle English keye (inherited)
←
Middle English kaye (mention)
←
Middle English keiȝe (mention)
←
North Frisian kay (cognate)
←
West Frisian kaai (cognate)
←
Proto-Germanic *kēgaz (derived)
←
Proto-Germanic *kēguz (mention)
←
Middle Low German kāk (cognate)
←
Middle Low German keie (cognate)
←
Middle Low German keige (mention)
←
Proto-Indo-European *ǵogʰ- (derived)
←
Proto-Indo-European *ǵegʰ- (mention)
←
Proto-Indo-European *ǵegʰn- (mention)
←
Saterland Frisian Koai (mention)
→
Indonesian kunci (semantic loan)
→
Chichewa kiyi (borrowed)
→
Saterland Frisian Koai (link)
→
West Uvean kip (borrowed)
→
Vietnamese khoá (semantic loan)