feriation
noun
fe·ri·a·tion
ˌfirēˈāshən,
ˌfer-
plural -s
archaic
: the keeping of a holiday especially by refraining from work
Word History
Etymology
Medieval Latin feriation-, feriatio, from Latin feriatus (past participle of feriari to rest from work, keep holiday, from feriae days of rest, holidays) + -ion, -io -ion