Lewis Short
myrīcē | myrīca, ae (noun F) = μυρίκη: or
* The tamarisk, a kind of shrub, Plin. 13, 21, 37, § 116; 24, 9, 41, § 67.—Prov., to signify something impossible: pinguia corticibus sudent electra myricae,Verg. E. 8, 54.
Charlton T. Lewis, Charles Short, A Latin Dictionary