Mead ingredients of alcoholic beverages led to commercial mead becoming a more obscure beverage until recently. Some monasteries kept up the old traditions of mead-making as a by-product of beekeeping, especially in areas where grapes could not be grown. The English "mead" – "fermented honey drink" – derives from the Old English "meodu" or "medu", and Proto-Germanic, *"meduz" (source also of Old Norse mjöðr, Danish mjød, Old Frisian and Middle Dutch mede, Old High German metu, German Met "mead"). "Madh", and the related terms "mad" (मद, مد) and "madira" (मदिरा, مدِرا), also mean alcohol. These words are all derived from the
Active ingredient Active ingredient An active ingredient (AI) is the ingredient in a pharmaceutical drug or pesticide that is biologically active. The similar terms active pharmaceutical ingredient (API) and bulk active are also used in medicine, and the term active substance may be used for natural products. Some medication products may contain more than one active ingredient. The traditional word for the API is pharmacon or pharmakon (from , adapted from pharmacos) which originally denoted a magical substance or drug. The terms active constituent or active principle are often chosen when referring to the active substance of interest in a plant (such