Pronounced: PIN-der, noun
Notes: This is a word I’ve never heard (that I know of); I ran across it while reading the definition of another word
Yesterday’s word
The word hebetude means “lethargy, dullness”.
Background
This word comes from Late Latin hebetudo (dullness, bluntness). This derives from the Latin root hebes (dull).
First usage
The word first showed up in the early 1600s
Rejected word
I knew the meaning of inane, so it didn’t make the cut