dude

Concise Oxford English Dictionary © 2008 Oxford University Press:
dude /d(j)uːd/ N. Amer. informal

▶noun

• 1 a man.

  ■ a stylish and confident man.

• 2 dated a stylish or affected man; a dandy.

▶verb (dude up) dress up elaborately.

– derivatives
dudish adjective.

– origin C19: prob. from Ger. dial.Dude ‘fool’.