Lewis Short
ōtĭōsĭtas (noun F) : otiosus
* Leisure, idleness (late Lat.).
* Lit.: multam mahtiam docuit otiositas,Vulg. Ecclus. 33, 29.
* Transf., a writing composed at leisure moments (post-class.): suas otiositates edere,the fruils of leisure, poems,Sid. Ep. 2, 10.
Charlton T. Lewis, Charles Short, A Latin Dictionary