titillate v. + Add to list US //ˈtɪtəˌɫeɪt// UK //tˈɪtɪlˌeɪt// tit·il·late SynonymsEtymology Synonyms ticklevellicateOriginLATtītillātus→ENtitillate From Latin tītillātus, from tītillāre (“to tickle”).