According to the OED, French hérisson really does derive from Latin ericius, and English urchin is indeed ultimately a borrowing of hérisson.

Cool question!!

I asked my colleague Philomen Probert and she said that German Igel and its cognates in other Germanic languages go back to a (western) Proto-Indo-European pre-form such as *eghīnos.

Merci

Thank you!

Thanks Ruben. Hope our paths cross soon.

Thank you!

Thanks! (Yessir!)

Amen

!!!