Where does “коклюш” come from?
коклюш (Russian) comes from Polish koklusz, from French coqueluche, from French coqueluchon, from Italian coccolucio, from Latin cucullus, from Proto-Indo-European kuH-l-, from Proto-Indo-European (s)kewH- — to cover, bedeck; cover.
коклюш (Russian): whooping cough
Ancestry of “коклюш”, step by step