Rhubarb cultivars have gained the Royal Horticultural Society’s Award of Garden Merit:- "Rhubarb" originally comes from the two Greek words for rhubarb. "Rheon" from the Persian "rewend", later became the Latin word "rheum", meaning rhubarb. The other Greek word is "rha", an ancient name for the Volga River in Russian, where rhubarb was cultivated, having been introduced there from China via the Silk Road. In medieval Latin, "rheon" and "rha" became "rheum barbarum", literally "foreign rhubarb" or "strange rhubarb", and evolved later into "rheubarbarum". Most likely, the English word "rhubarb" entered the language via the French word "rhubarbe" brought over by
Encyclical Encyclical An encyclical was originally a circular letter sent to all the churches of a particular area in the ancient Roman Church. At that time, the word could be used for a letter sent out by any bishop. The word comes from Late Latin "encyclios" (from Latin "encyclius", a Latinization of Greek "enkyklios" meaning "circular", "in a circle", or "all-round", also part of the origin of the word encyclopedia). The term has been used by Catholics, Anglicans and the Eastern Orthodox. Although the term "encyclical" originally simply meant a circulating letter, it acquired a more specific meaning within the context