OK LawDawg- I just had to look it up!
sesquipedalian \ses-kwuh-puh-DAYL-yuhn\, adjective:
1. Given to or characterized by the use of long words.
2. Long and ponderous; having many syllables.
noun:
1. A long word.
Actually it was the word of the Day in 1999.
))
Going back to our game!
We had Baby
so I'm going to say:
CALF