'Definately' enjoys a subtly different meaning from 'definitely'.
If some item x is definitely f (i.e. it definitely has the property of f-ness), then it must be f in some perfect, absolute, non-finite way.
By contrast, if some item x is definately f then x is f by definition, or is the very definition of f-ness.
The former is an
ontological claim, whereas the latter is conceptual/
semantic.
That's why all us clever people who spell by rational
deduction rather than blind repetition use both spellings, to distinguish our precise meanings.
Of course when they bring the
maple syrup after the
pancakes, it'll definately be
too late.
