Ilk

Pronunciation:
ilk

Definition:
family, class, or kind: he and all his ilk.

In modern use, ilk is used in phrases such as of his ilk, of that ilk, to mean ‘type’ or ‘sort.’ The use arose out of a misunderstanding of the earlier, Scottish use in the phrase of that ilk, where it means ‘of the same name or place.’ For this reason, some traditionalists regard the modern use as incorrect. It is, however, the only common current use and is now part of standard English.

Etymology:
before 900; Middle English ilke, Old English ilca  (pronoun) the same, equivalent to demonstrative i  (cognate with Gothic is  he, Latin is  that) + a reduced form of līc like
 
First Known Use of ILK: 1790

It's interesting to me that this word has been misused so much that it's misusage is now considered correct. I may have to actually stop using this word in opposition.