Incorrect spelling, explanation: emminently is a wrong spelling, due to the Latin spelling eminentem – with one m instead of double m. Therefore the correct English spelling is eminently. Em is not a prefix, so m doesn’t double, the word is already a full form: eminently.

Correct spelling, explanation: this is the correct spelling as the word comes directly from Latin eminentem – this shows that the spelling hasn’t been changed much in the English version. Emminently is an incorrect form due to the fact that em here is not a prefix, so m doesn’t have to be doubled. Eminently is, therefore, the correct form.

Definition of eminently:
adverb, very much; extremely well
Jasmine is an eminently creative artist.
His actions are always eminently predictable.