We’re all tempted to use words that we’re not too familiar with. If this were the only problem, I wouldn’t have much to write about. That’s because we’re cautious with words we’re unsure of and, thus, they don’t create much of an issue for us. It’s the words that we think we’re using correctly that wreak the most havoc. We throw them around in meetings, e-mails and important documents (such as resumes and client reports), and they land, like fingernails across a chalkboard, on everyone who has to hear or read them. We’re all guilty of this from time to time, myself included.
Source: 20 misused English words that make smart people look silly – Quartz