Webster’s Revised Unabridged Dictionary · 1913
Priapism
Pri′a·pism, n. [L. priapismus, Gr. πριαπισμός, from Priapus the god of procreation, the penis, Gr. Πρίαπος: cf. F. priapisme.] (Med.) More or less permanent erection and rigidity of the penis, with or without sexual desire.