persiflate
To engage in persiflage; to banter.
intransitive, rare, transitive
We talked and persifflated all the way to London; and the idea of her will help me to a good chapter, in which I will make Pendennis and Blanche play at being in love, such a wicked false humbugging love, as two blase London People might act, and half deceive themselves that they were in earnest.
Where it comes from
Borrowed from French persifler, persiffler, or formed from persiflage + -ate (verb-forming suffix). Coined by British novelist William Makepeace Thackeray in 1850 (see quotation below).
Adapted from the Wiktionary entry persiflate (CC BY-SA 4.0).