berillus

== Latin == === Noun === bērillus m (genitive bērillī); second declension alternative form of bēryllus ==== Declension ==== Second-declension noun. === References === "berillus", in Charles du Fresne du Cange, Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)