Common words:
* misbehave
* mislead
* mistake
* misfortune
* misunderstand
* mistrust
* misplace
* misuse
* missing
* mission
Less common words:
* misanthrope
* miscarry
* miscegenation
* mischief
* miscible
* misconstruction
* miscount
* misfire
* misgiving
* misinform
* misinterpret
* misjudge
* mismanage
* mismatch
* misnomer
* misogynist
* misprint
* misquote
* misrepresent
* misrule
* misshapen
* misspell
* misspeak
* misspend
* misstate
* mistimed
* mistreat
* misvalue
Words starting with "mis-" that aren't actual words:
* misbobbity (an invented word)
* misdoohickey (an invented word)
* misgrog (an invented word)
This list is not exhaustive, but it provides a good starting point. You can use a dictionary or thesaurus to find more words starting with "mis-."