Morpheme
Dunder
Type
free base
Denotation
loud noise
Etymology
of unknown origin but probably from Scandinavian such as Middle Dutch doner, donder
Evidence
dunder, dundered, dunderhead, dunderheaded, dunderheadism, dunderheads, dundering, dunderpate, dunderpated, dunders, dunderwhelp
Notes
<r> does not double because the stress falls on the first syllable
