The suffix of "spell" is " -el."
The suffix for misspelled is "-ed."
Misspell
"Usable"
noisily
The word is scholarly, which is scholar + the suffix -ly.
The word "comfortable" shares the same suffix as "unsuitable."
That is the correct spelling of "microorganism" (very small living thing).
Memori isn't a word. If you spell it m-e-m-o-r-y that doesn't have a suffix. To answer your question, the word memori does not, therefore, have a suffix.
The word is spelled strengthen. Strength is the base word and "-en" is the suffix.
The word is spelled skillful. The base word is skill. The suffix is "-ful".
The correct spelling is "surely".