English dour

← Catalan dur (cognate)

← English dure (doublet)

← Spanish duro (cognate)

← French dur (cognate)

← Italian duro (cognate)

← Latin dūrus (derived)

← Middle Irish dúr (derived)

← Portuguese duro (cognate)

← Romanian dur (cognate)

← Scots dour (borrowed)

→ English dure (doublet)

→ English durum (doublet)

→ English dourly (suffix)

→ English dourness (suffix)