husk 
(h
ŭsk)
n.1. The outer membranous or green envelope of some fruits or seeds, as that of a walnut or an ear of corn.
2. A shell or outer covering, especially when considered worthless.
3. A framework serving as a support.
tr.v. husked,
husk·ing,
husks To remove the husk from.
[Middle English, probably diminutive of hus, house, Middle Dutch hūskijn, little house, core of an apple; see HOUSE.]
husker n.