Webster's English Dictionary

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persiflage

per.si.flage \'p*r-s*-.fla:zh, 'per-\ n [F, fr. persifler to banter, fr. 
   per- thoroughly + siffler to] whistle, hiss, boo, fr. L sibilare, of imit. 
   origin : frivolous or lightly derisive talk or manner of treating a subject