operosity en · NOUN
Etymology
From operose + -ity, from Latin operositas.
Meanings
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(uncountable) Laboriousness; painstakingness.
[T]here is a kinde of operoſity in ſin, in regard vvhereof ſinners are ſtiled, The vvorkers of iniquity: […]
1648, J[oseph] Hall, chapter LXV, in Select Thoughts: Or, Choice Helps for a Pious Spirit. […], London: […] Nath[aniel] Brooke, […], published 1654, →OCLC, page 187: