Words

Don't ask me why I was surfing m-w.com, but I found this great list there:

2004 Top Ten Favorite Words

1. defenestration (to throw a person or thing out of a window)
2. serendipity
3. onomatopoeia
4. discombobulate (upset, confuse)
5. plethora
6. callipygian
7. juxtapose
8. persnickety
9. kerfuffle
10. flibbertigibbet

My favorite:

cal·li·pyg·ian

Pronunciation: "ka-l&-'pi-j(E-)&n
Variant(s): or cal·li·py·gous /-'pI-g&s/
Function: adjective
Etymology: Greek kallipygos, from kalli- + pygE buttocks
: having shapely buttocks