Definify.com
Webster 1913 Edition
Fortread
For-tread′
,Verb.
T.
To tread down; to trample upon.
[Obs.]
In hell shall they be all
fortroden
of devils. Chaucer.
A fortress is constructed for military purposes only, and is permanently garrisoned; a fortification is built to defend harbors, cities, etc.; a castle is a fortress of early times which was ordinarily a palatial dwelling; a citadel is the stronghold of a fortress or city, etc.