feriation
A holiday or break from work or effort.
obsolete, uncountable
And therefore as though there were any feriation in nature or justitiums imaginable in professions, whose subject is natural, and under no intermissive, but constant way of mutation, this season is commonly termed the physician's vacation, and stands so received by most men.
Where it comes from
From Latin ferior (“to keep holiday”), from feriae (“holidays”).
Adapted from the Wiktionary entry feriation (CC BY-SA 4.0).