querneus

quernĕus, a, um, adj. [contr. from quercuneus, quercneus, from quercus],

of oaks , oaken , oak- (ante-class. and postAug.): frondem populneam, ulmeam, querneam caedito, Cato R. R. 5, 8; Col. 6, 3, 7: frutices, id. 7, 6, 1: folia, id. 6, 3, 7: corona, Suet. Calig. 19 Oud. N. cr.