#Shrovetide  immediately preceding Lent
  supertype:  season.time_period  a recurrent time marked by major holidays; "it was the Christmas season"
  part of:  church_calendar
  part:  Mardi_Gras__Shrove_Tuesday__pancake_day  the last day before Lent

No statement uses or specializes Shrovetide; click here to add one.