The Collaborative International Dictionary of English v.0.48:
Rascality \Ras*cal"i*ty\ (r[a^]s*k[a^]l"[i^]*t[y^]), n.; pl. Rascalities (r[a^]s*k[a^]l"[i^]*t[i^]z) [1913 Webster] 1. The quality or state of being rascally, or a rascal; mean trickishness or dishonesty; base fraud. [1913 Webster] 2. The poorer and lower classes of people. [Obs.] [1913 Webster] The chief heads of their clans with their several rascalities --T. Jackson. [1913 Webster]