il·ka (?l?k?) also ilk (?lk)adj. Scots Each; every.[Middle English ilk a, each one : ilk (variant of ech, each; see each) + a, one, a; see a2.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.il?ka (??l k?) adj. Chiefly Scot. every; each. [1150?1200; Middle English; orig. phrase ilk a each one. See ilk2, a1] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.