Origin: Germanic Old English prefix
Beryllium has 2 different meanings across 1 category:
a light strong brittle grey toxic bivalent metallic element
The chemical element (symbol Be) with an atomic number of 4; a soft silvery-white low density alkaline earth metal with specialist industrial applications.
Beryllium comes from the word beryl plus the suffix -ium. It was named this way because the element is a main part of the mineral beryl.