Think (present) - thought (past), not "thinked".
Fish (singular) - fish (pl.), not "fishes".
Or, for that matter, Calvinist and Arminian.
And so on... As an Army chaplain and educated man, you're aware of this.
Of course, "strategery", "femi-Nazi", and "mcJob" are examples of newcomers to our highly mutable vernacular, so if you get enough people on board, who knows?
Strategery is my favorite....closely followed by misunderestimate!
Gollum might disagree...but that's an entirely different tangent.