French requin

← Old French reschin (inherited)

← Old French rekigner (mention)

→ English requiem (mention)

→ English requin (borrowed)

→ English requiem shark (mention)

→ Breton rinkin (cognate)

→ Seychellois Creole reken (derived)

→ Haitian Creole reken (derived)

→ Mauritian Creole reken (derived)

→ Polish rekin (borrowed)

→ Romanian rechin (borrowed)