Kudos on Etymology of “dude” is traced to "doodle," as in Yankee Doodle Dandy · Hackerly

Comment on Etymology of “dude” is traced to "doodle," as in Yankee Doodle Dandy

I always thought dude came from the Irish word "Dúd" or "Dúdaire".

http://www.nytimes.com/2007/11/08/nyregion/08irish.html