←
Old English fēower (cognate)
←
Proto-Indo-European *kʷetwṓr (inherited)
←
Sanskrit चतुर् (cognate)
←
Old Armenian չորք (cognate)
→
English cadre (mention)
→
Aragonese quatre (inherited)
→
Extremaduran cuatru (inherited)
→
French quatuor (unadapted borrowing)
→
Old French quatre (inherited)
→
Old French catre (inherited)
→
Old French qatre (mention)
→
Galician catro (inherited)
→
Indonesian kader (mention)
→
Kabuverdianu kuárta (derived)