Platonic bodies; cube, rhomboid; tetrahedron, pentahedron, hexahedron, octahedron, dodecahedron, icosahedron, eicosahedron; prism, pyramid; parallelopiped; curb roof, gambrel roof, mansard roof.

So trihedrons, tetrahedrons, pentahedrons, &c., though some say, these last may end in dra, which I think improper.