"waxy, having the texture or color of new wax," 1738, from Latin cera "wax" (see cere (n.)) + -aceous.
Entries linking to ceraceous
cere n.
"wax," late 15c., from French cire "wax" (12c.), from Latin cera "wax, wax seal, wax writing tablet," related to Greek kēros "beeswax," which is of unknown origin, perhaps a non-IE word. As a verb, "to wax, cover with wax" (cloth, for waterproofing), late 14c., from Latin cerare, from cera. Related: Cered.
-aceous
word-forming element denoting "belonging to, of the nature of," from Latin -aceus, enlarged form of adjectival suffix -ax (genitive -acis); see -acea. Especially in biology, "pertaining to X order of plants or animals."