picaresque (adj.)youdaoicibaDictYouDict[picaresque 词源字典]
1810, from Spanish picaresco "roguish," from picaro "rogue," of uncertain origin, possibly from picar "to pierce," from Vulgar Latin *piccare (see pike (n.2)). Originally in roman picaresque "rogue novel," the classic example being "Gil Blas."[picaresque etymology, picaresque origin, 英语词源]