Definition of porraceous in English:
porraceous
adjective pəˈreɪʃəspɒˈreɪʃəs
rare Resembling a leek, especially leek-green in colour.
Origin
Early 17th century; earliest use found in Richard Surflet (fl. 1600–1616), translator. From classical Latin porrāceus resembling a leek, leek-green + -ous.