[ si-doo-li-tee, -dyoo- ]
/ sɪˈdu lɪ ti, -ˈdyu- /
sedulous quality, application, or activity; diligence.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Word Origin and History for sedulity
1540s, from Latin sedulitas "assiduity, application," noun of quality from sedulus (see sedulous).
Online Etymology Dictionary, © 2010 Douglas Harper