Where does “Pentecost” come from?

Pentecost derives from Old English pentecosten, from Ecclesiastical Latin pentecoste, from Ancient Greek πεντηκοστή, meaning fiftieth, from πεντήκοντα, fifty, from Proto-Indo-European pénkʷe(d)ḱomt.

Ancestry of “Pentecost”, step by step

StepLanguageWordMeaning
1Middle EnglishPentecostePentecost Christian holiday
2Old EnglishpentecostenPentecost
3Ecclesiastical LatinpentecosteAlternative letter-case form of Pentēcostē
4Koine GreekπεντηκοστήPentecost - From the feast called Shavuot, which...
5Ancient GreekπεντηκοστήPentecost - From the feast called Shavuot, which...
6Ancient Greekπεντηκοστόςfiftieth
7Ancient Greekπεντήκονταfifty
8Proto-Indo-Europeanpenkʷēḱomth₂
9Proto-Indo-European*pénkʷedḱomt

Words derived from “Pentecost

Every word from Proto-Indo-European *pénkʷedḱomtEvery word from Proto-Indo-European penkʷēḱomth₂Every word from Ancient Greek πεντήκοντα