Definition from Wiktionary, the free dictionary
From Medieval Latin cumfiria; this was possibly from earlier Latin conferva (an aquatic herb mentioned in Pliny), from conferveo (“I boil together”; from the use of the plant in tea to aid in healing bones).
- Any of several species of perennial herbs of the genus Symphytum, often specifically Symphytum officinale.
2007 April 25, Kim Severson, “Farmer, Cookie Maker, Ecologist and, Yes, the Future King”, in New York Times:
- It thrives on compost and natural fertilizers brewed from comfrey or seaweed and uses only rain, natural groundwater or wastewater purified through a system of reed beds.