euphrasy \eu"phra*sy\ ([=u]"fr[.a]*s[y^]), n. [NL. euphrasia,
fr. Gr. e'yfrasi`a delight, fr. e'yfrai`nein to delight; e'y^
well + frh`n heart, mind: cf. LL. eufrasia, F. eufraise.]
(Bot.)
The plant {eyebright} ({Euphrasia officionalis}), formerly
regarded as beneficial in disorders of the eyes.
[1913 Webster]
Then purged with euphrasy and rue
The visual nerve, for he had much to see. --Milton.
[1913 Webster]