When I spell "definitely" correctly GIF

It's taken me nearly 18 years, but I can finally spell similar without adding an extra 'i' somewhere.

My sister always says "If you put an 'a' in definitely (definately), then you're definitely an a-hole"

De-finite-ly

Poor kid poked himself in the eye :(

Defiantly

this is definentliyn right

But can you remember how to spell desperate and separate off the top of your head? Which perate/parate goes with which one even though it sounds exactly the same?