Main Entry: ilk
Pronunciation: \ˈilk\
Function: pronoun
Etymology: Middle English, from Old English ilca, from *i- that, the same (akin to Gothic is he, Latin, he, that) + *lik- form (whence Old English līc body) — more at iterate, like
Date: before 12th century
chiefly Scottish : same —used with that especially in the names of landed families
http://www.merriam-webster.com/dictionary/ilk