I wanted to write overly (as in “he was not overly tired”).
I wrote the usual o-hook above the line, and then the e-circle ON the line (e-circle as a word-ending indicating ‘ly’). Thus ‘over’ + ‘ly’:

But it looks open to misinterpretation (though I cannot yet think what else it might mean). I tried spelling it out more fully in various way, but that was worse, or more cumbersome. I could not find the word in my dictionary.
If I need that word again, am I safe with my method?