I examined oραω, and this lemma is used for some tenses, whereas ειδον is used for others. The lemma for Aorist actives is ειδον, while the lemma for Aorist passives is οραω, unless the word includes a prepositional prefix, in which case οραω is used. I confirmed that εσθιω is the lemma for all forms, including the φαγ- forms of the Aorist and Future. What is a workaround to find roots?