Maybe it is in 'action', but I'm not sure.
Interact
The root word of actively is active; not act because the word 'act' has a different meaning to the other two words.
The suffix of actor is -or. -Or denotes a person that does something.
act
act
act
act
The root for the word "mission" is the Latin word "missio," meaning "act of sending."
reenact react enact preact actor
The root word for tumbling is "tumble." It refers to the act of falling or rolling uncontrollably.
actor,action,activate
Act, from the Latin actos 'a thing done'