Where does “otiositas” come from?

otiositas (Latin) comes from Latin ōtiōsus, from Latin -ōsus, from Old Latin -ōssus.

otiositas (Latin): leisure, idleness

Definitions

Step	Language	Word	Meaning
1	Latin	ōtiōsus	—
2	Latin	-ōsus	—
3	Old Latin	-ōssus	—

otiositas — Etymology, Origin & Word History | Etymology Explorer