Caddiss \c(a)-ddi-ss\ as a boy's name is a variant of Caddis (Old English), and the meaning of Caddiss is "worsted fabric".
The baby name Caddiss sounds like Caddice and Gaddis. Other similar baby names are Cadmuss, Addis, Cadbie, Caddock, Caddell, Cadmus, Cadmos, Caius, Callis, Cass, Cassius, Claudius, Curtiss, Gaddiel, Gadish, Geddis, Caydin, Caidin and Thaddius.