farfalle = [pasta shaped like] butterflies

Interesting. In yiddish, farfel is a kind of noodle.
[url]http://www.bartleby.com/61/72/F0037200.html[/url}:
farfel: (PRONUNCIATION: färfl) NOUN: Noodles shaped like small grains or pellets. ETYMOLOGY: Yiddish farfl, from Middle High German varveln.

Can anyone put together whatever connection may exist?