Hi everybody, I would like to ask a simple question to Mothertongues: Have you ever Heard the adjective theorical? Here in Italy, I think we always try to Italianize every word while speaking other languages (do you know about adding - s and pretend to speak a perfect spanish?). I found "theorical yield" in a file (translated by a friend of mine) and I cannot find it in a dictionary, as I only found "theoretical". Is it because it is an obsolete word, or worst, it does not exist?

Thanks to anyone who will provide an answer.