Quin`qua*ges"i*ma (?), a. [L., fr. quinquagesimus the fiftieth, akin to quinquaginta fifty, quinque five. See Five.]
Fiftieth.
Quinquagesima Sunday, the Sunday which is the fiftieth day before Easter, both days being included in the reckoning; -- called also Shrove Sunday.
© Webster 1913.