Where does “Ιωάννης” come from?

Ιωάννης (Greek) comes from Koine Greek Ἰωάννης, from Hebrew יוחנן, from Hebrew חנון, from Moroccan Arabic خنونة, from Arabic خُنَّة.

Ιωάννης (Greek): Any of the religious figures named John in the Bible, such as the John the Apostle or John the Baptist