Lewis Short
nāpy (noun N) : νᾶπυ (an old form for σίναπι)
* Mustard: sinapi Athenienses napy appellaverunt,Plin. 19, 8, 54, § 171: alterum thlaspi aliqui Persicum napy appellaverunt,id. 27, 13, 113, § 140.
Charlton T. Lewis, Charles Short, A Latin Dictionary