Borrowed Words 5

Rest your bones and hang out with us as we talk about the origins of eponymous words.  

Sources:
Teddy Bear, A Brief History of the Cardigan, The Evolution and Impact of the Cardigan, Fahrenheit and the Birth of Precision Thermometry, Origins of Masochism , Britannica-Masochism , Marquis de Sade, Who Was Marquis de Sade?, Britannica-Sadism, Alois Alzheimer, Time.com , Alzheimer's Disease