When a word ends in the "hard c" sound -- mimic, static, picnic -- you want to maintain
that sound in all forms of the word. Since "ci" and "ce" sound like an "s," you need to alter
the spelling to keep the "hard c" sound.
When adding an ending that begins with an "i" or an "e" to a word that ends in "ic," add
a "k" before the ending.
...picnicked, picnicking
...mimicked, mimicking
...staticky
Happy punctuating!
Margie