The Collaborative International Dictionary of English v.0.48:

Illy \Il"ly\, adv. [A word not fully approved, but sometimes
   used for the adverb ill.]
   [1913 Webster] Ilmenite \Il"men*ite\, n. [So called from
   Ilmen, a branch of the Ural Mountains.] (Min.)
   Titanic iron. See Menaccanite.
   [1913 Webster]