French courtois

← Czech zdvořilý (cognate)

← German höflich (cognate)

← French cour (cognate)

← French -ois (affix)

← Old French cortois (inherited)

← Old French cort (derived)

→ English courteous (mention)

→ English Curtis (cognate)

→ Czech zdvořilý (cognate)

→ French discourtois (prefix)