Decortico, decorticas, pen. corr. decorticâre. Plin. To barke a tree.
Lewis and Short: Latin dictionary
dē-cortĭco, no perf., ātum, 1, v. a. [cortex], to deprive of the bark: to bark, to peel (rare), Plin. 16, 39, 74, 188: abietem, id. 16, 41, 80, 221: ficum, Vulg. Joel 1, 7.