What words have folk etymologies (e,g., "an apple" from "a napple")?

This phenomenon is also called "metanalysis" or "affix-clipping."

adder (a nadder -> an adder)
aitch-bone (a nache-bone -> an aitch-bone)
apple (a napple -> an apple)
apron (a naprun -> an apron)
auger (a nauger -> an auger)
eyas (a neyas -> an eyas)
newt (an ewt -> a newt)
nickname (an eke-name -> a nickname)