First off, I can't believe I forgot that yesterday was Wednesday! So here is yesterday's WordWednesday entry.
Lewis Carroll first coined "portmanteau" for words in 1871. For example:
"slithy" is a portmanteau word he formed by combining lithe & slimy.
Portmanteau words don't always work in both directions; slithy works, while limy and limey do not. Another example: I have combined the words notice and invitation to make invinotice. I think it works better than notivation does.
You'll see a lot of portmanteau words in my WordWednesdays because they're just a lot of fun and, often, quite clever.