Untie.
Delay.
Stall.
* jumbo * giant * hefty * large
The Latin word for undo is deatuse.
One option is the word conga.
empty
Three (3).
armoramberbikerboxercatercolorcoverdinerdiverelderfavorflourgiverhikerhumorinnerjokerlaborlemurlaserloserliterleverloverlivermajormakermayormanormotorminormoverneverownerolderpokerpowerrazorriverrumorsaversavorseversobertatertowertakertruertumorwaterwiper
quadsquits
undo
"de" is not a root word. It is a prefix meaning "to undo" To debunk a theory is to undo it, to prove it false.
un in undo means... redo or to do it again