I am studying the Greek lemma γηθέω. This is a very important term in New Testament Greek. It seems per the entry in Encyclopedia of Ancient Greek Language and Linguistics by Rutger Allan that it is a Activa Tantum verb. I searched for Activa Tantum in the search box within Logos Bible Software. I also did a search on the Greek lemma. Nothing explains this and I do not understand how Greek verbs can be active only. I have some questions. Are Activa Tantum verbs finite? Could this be explained in a Logos search?