We don't have synonyms for rootbeer yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are rooter, root beer and rootier.
(n) :
Alternative spelling of root beer. [A beverage, most often a carbonated soft drink made from a combination of vanilla, cherry tree bark, licorice root, sarsaparilla root, sassafras root bark, nutmeg, anise, and molasses, among other things.]
(n) :
Alternative spelling of root beer. [A beverage, most often a carbonated soft drink made from a combination of vanilla, cherry tree bark, licorice root, sarsaparilla root, sassafras root bark, nutmeg, anise, and molasses, among other things.]