Lewis & Short

* in-spīco, āvi, ātum, 1, v. a., to cleave, split (i. q. incīdere): faces (i. e. ligna in usum facium ita incidere, ut multis incisuris dividantur), Verg. G. 1, 292 (cf.: novas incidere faces, id. E. 8, 29).