French sourd

← Middle French sourd (inherited)

← Old French sourt (inherited)

← Old French sord (mention)

← Old French surt (mention)

← Old French surz (mention)

← Proto-Indo-European *swer- (derived)

← Latin surdus (inherited)

→ Esperanto surda (borrowed)

→ French absurde (mention)

→ French assourdir (confix)

→ French sourdement (suffix)

→ French sourdingue (affix)

→ Antillean Creole soud (derived)

→ Ido surda (borrowed)

→ Ido surda (mention)