verb[with object] informal
early 19th century (in early use, also as tidivate): perhaps from tidy, on the pattern of cultivate
The verbs titillate and titivate sound alike but do not have the same meaning. Titillate, a much more common word, means ‘stimulate or excite,’ as in the press are paid to titillate the public. Titivate, on the other hand, means ‘adorn or smarten up,’ as in she titivated her hair.