Noun
-
a person who destroys or ruins or lays waste to
"a destroyer of the environment"
"jealousy was his undoer"
"uprooters of gravestones"
-
a person who unfastens or unwraps or opens
"children are talented undoers of their shoelaces"
- unfastener - untier -
a seducer who ruins a woman
"she awoke in the arms of her cruel undoer"