LSJ
α, ον, of Lysimachus, χρυσοῦς IG 11(2).287 B 46 (Delos, iii BC), written -εος. Subst. λυσιμάχειος, ὁ, loosestrife, Lysimachia vulgaris, Dsc. 4.3, Gal. 12.64; also λυσιμάχειον, τό, Paul.Aeg. 7.3. (Freq. written -ιον in codd.)
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)