in-caedŭus (incīdŭus, Stat. Th. 6, 90), a, um, adj.,
not cut or felled , uncut , unhewn (poet. and in post-class. prose): lucus, Ov. F. 2, 435: silva, id. Am. 3, 1, 1; Stat. Th. 6, 90: intonsi montes, silvosi, incaedui, Serv. Verg. E. 5, 63.
in-caeduus adj., uncut, not felled: lucus, O. ...
An Elementary Latin Dictionary