In the Unknown origin, Geddis means "Geddis \ge(d)-dis\ as a boy's name is a variant of Geddes. See for origin and meaning of Geddis.
The baby name Geddis sounds like Gaddis and Caddis. Other similar baby names are Addis, Caddiss, Dodds, Gedalio, Gedalia, Georas, Gidi, Gillis, Jedd and Odis."