Origin of fud
First recorded in 1910–15; back formation from fuddy-duddy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for fud
Historical Examples of fud
Colonel Aoki stood in the midst of that as firm and unflinching as Ni- or Fud, staring at the enemy with steady gaze.Human Bullets
"backside, buttocks," 1785, a Scottish and Northern dialect word of unknown origin, perhaps from Scandinavian.
Online Etymology Dictionary, © 2010 Douglas Harper