Paiwan Every Day 586: dudu // demudu

cf. Paiwan Every Day 584:  dudu // deminudu

demudu aravac a kulavaw. 

Free translation: 

Mouse is such a headache. (Mouse is really annoying or Mouse angers people a lot.)

Word gloss: 

1. d<em>udu: to anger, to infuriate, AV. The root is dudu 'anger, madness'. 
2. aravac: quite, a lot
3. a: subject case marker
4. kulavaw: mouse, synonymous with kiki. 

Voice file: 

From Raleigh Ferrell's Paiwan Dictionary (1982) and ILRDF Online Paiwan Dictionary demudu. 

How to explain the difference between deminudu and demudu?