Greek word
pentēkostḗ
πεντηκοστή
What it means
fiftieth being implied) from Passover, i.e. the festival of Pentecost
fiftieth (hēméra (ἡμέρα) being implied) from Passover, i.e. the festival of "Pentecost"
Where it comes from
feminine of the ordinal of pentḗkonta (πεντήκοντα)