pratalyoudaoicibaDictYouDict[pratal 词源字典]
"In H. C. Watson's terminology: of or relating to a plant that grows in meadows or lush grassland", Mid 19th cent.; earliest use found in Hewett Watson (1804–1881), botanist and phrenologist. From classical Latin prātum a meadow, of uncertain origin + -al. Compare classical Latin prātālis used as pasture (in an inscription).[pratal etymology, pratal origin, 英语词源]