From ThresholdRPG Wiki
This is the command used to put armor on your character. To do so, simply type equip <armor>. For example, equip robe or equip leather boots.
As well, you can identify items by adding their enumerator to their name. For example, equip ring 2 or equip shield 3.
You can also use the wear in place of equip as it is globally aliased to equip.