Where does “quinquagesimal” come from?

quinquagesimal (English) comes from Latin quinquagesimus, from Latin quīnquāgintā, from Proto-Indo-European penkʷēḱomt, from Proto-Indo-European *pénkʷedḱomt.

quinquagesimal (English): Relating to a set of 50

Definitions

  1. Relating to a set of 50

Ancestry of “quinquagesimal”, step by step

StepLanguageWordMeaning
1Latinquinquagesimusfiftieth; fifty-year-old
2Latinquīnquāgintāfifty; 50
3Proto-Indo-Europeanpenkʷēḱomt
4Proto-Indo-European*pénkʷedḱomt
Every word from Proto-Indo-European *pénkʷedḱomtEvery word from Proto-Indo-European penkʷēḱomtEvery word from Latin quīnquāgintā