Difference between Elicit and Illicit:
There is a huge difference between Elicit and Illicit. The word elicit is a verb which means to draw something out of someone, by coaxing or pleading or urging. Usage – I tried my might but failed to elicit a response from John on the issue of his fight with Ricky. The above sentence means I failed to extract the information that I desired from John.
Usage (ii)- Mary failed to elicit the support of Americans in election.
On the other hand the word illicit is an adjective. The word illicit meansforbidden;
Usage(ii)- I can’t be friends with John because he sells cocaine, and selling cocaine is an ilicit business.