- quinquagesimal
[quinquagesimal 词源字典]
- "Designating, belonging to, or relating to a set of fifty things (especially days); based on division into fifty parts", Mid 17th cent.; earliest use found in Daniel Cawdrey (d. 1664), Church of England clergyman and ejected minister. From post-classical Latin quinquagesimus fiftieth + -al.[quinquagesimal etymology, quinquagesimal origin, 英语词源]