However, the word is antimacassar. I was reminded of this word by a book I just finished. I hadn't heard this word in years, and bet most people under 35 don't know the word at all.
So here is what Merriam Webster has to say on the subject:
definition of ANTIMACASSAR
: a cover to protect the back or arms of furniture
Origin of ANTIMACASSAR
anti- + Macassar (oil) (a hairdressing)
First Known Use: 1844
You know those doilies on Great-Grandma's sofa? Those are antimacassars. What are you waiting for? Go tat one!