To be honest I don't know what the fuck your (parenthetical) terms were. You just have to learn those things under some name, and even if you know what a functo

To be honest I don't know what the fuck your (parenthetical) terms were. You just have to learn those things under some name, and even if you know what a functor is in maths it won't tell you how to write Haskell. There's no magic word that will tell you exactly what something is, unless you already know the exact concept by a different name. You can try to make the names mnemonic, but they can't be a whole explanation.