ensiling

from The Collaborative International Dictionary of English v.0.48

Ensile \En*sile"\, v. t. [imp. & p. p. {Ensiled}; p. pr. & vb.
   n. {Ensiling}.] [F. ensiler: cf. Sp. ensilar. See {Silo}.]
   To store (green fodder) in a silo; to prepare as silage. --
   {En"si*list}, n.
   [Webster 1913 Suppl.]