Merriam-Webster Collegiate Dictionary - distill

 also distil  verb  (~ed; ~ing)  Etymology: Middle English ~en, from Anglo-French ~er, from Late Latin ~are, alteration of Latin destillare, from de- + stillare to drip, from stilla drop  Date: 14th century  transitive verb  1. to let fall, exude, or precipitate in drops or in a wet mist  2.  a. to subject to or transform by ~ation ~ molasses into rum  b. to obtain by or as if by ~ation ~ whiskey able to ~ humor from personal loss  c. to extract the essence of ; concentrate  intransitive verb  1.  a. to fall or materialize in drops or in a fine moisture  b. to appear slowly or in small quantities at a time  2.  a. to undergo ~ation  b. to perform ~ation