Definify.com

Webster 1913 Edition

Noun.

[L.

feriari

to keep holiday, fr.

ferie

holidays.]

The act of keeping holiday; cessation from work.

[Obs.]

Sir T. Browne.

Noun.

[L. feriatio, from feriae, vacant days, holidays.]

The act of keeping holiday; cessation from work.

feriation ‎(uncountable)

(obsolete) The observation of a holiday; cessation from work.
- Thomas Browne
  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.