ăcernus — Lewis & Short
ăcernus, a, um, adj.1. ăcer,
I made of maple:
equus trabibus contextus acernis,Verg. A. 2, 112; 9, 87:
solio,ib. 8, 178:
mensa,Hor. S. 2, 8, 10; cf. Mart. 14, 90:
mensae,Ov. Met. 12, 254 al.