Morpheme
Trouble
Type
free base
Denotation
stir, spin, agitate, turmoil, suffering
Etymology
Middle English truble, troble, troublen; Old French troble, troubler, trobler, trubler, from torbler; Latin turba
Evidence
distrouble, trouble, troubled, troubler, troubles, troubleshoot, troublesome, troubling, untroubled, untroubling