[1760–70; ‹ L cēr(a) wax (cf. Gk kērós wax) + -aceous]This word is first recorded in the period 1760–70. Other words that entered Englishat around the same time include: genre, icing, plunk, provincialism, sounding board-aceous is a suffix with the meanings “resembling, having the nature of,” “made of,” occurringin loanwords from Latin (cretaceous; herbaceous) and forming adjectives in English on the Latin model (ceraceous), esp. adjectival correspondents to taxonomic names ending in -acea and -aceae (rosaceous)