sparrowgrass

[spar-oh-gras, -grahs] /ˈspær oʊˌgræs, -ˌgrɑs/
noun, Informal.
1.
Origin
1650-60; by folk etymology
British Dictionary definitions for sparrowgrass

sparrowgrass

/ˈspærəʊˌɡrɑːs/
noun
1.
a dialect or popular name for asparagus
Word Origin
C17: variant of asparagus, associated by folk etymology with sparrow and grass