If you’ve never heard of the word “titivate,” it might help you to remember the definition by learning it comes from the word “tidy” and was originally spelled “tidivate.” “Titivate” sounds similar to a more commonly known word, “titillate.” Even though they’re both verbs, there will likely be confusion if you mix them up. “Titillate” means “to stimulate or excite,” and “titivate” means “to make enhancements to something.” The latter could be discussed in polite company, while the former is likely to be kept behind closed doors.