Where does “Pfingstlerin” come from?

Pfingstlerin (German) comes from German Pfingstler, from German Pfingsten, from Middle High German phingesten, from Ecclesiastical Latin pentecoste, from Koine Greek πεντηκοστή, from Ancient Greek πεντηκοστή, from Ancient Greek πεντηκοστός, from Ancient Greek πεντήκοντα.

Ancestry of “Pfingstlerin”, step by step

Step	Language	Word	Meaning
1	German	Pfingstler	Pentecostalist, Pentecostal member of a Pentecostal church
2	German	Pfingsten	Pentecost
3	Middle High German	phingesten	—
4	Ecclesiastical Latin	pentecoste	Alternative letter-case form of Pentēcostē
5	Koine Greek	πεντηκοστή	Pentecost - From the feast called Shavuot, which...
6	Ancient Greek	πεντηκοστή	Pentecost - From the feast called Shavuot, which...
7	Ancient Greek	πεντηκοστός	fiftieth
8	Ancient Greek	πεντήκοντα	fifty
9	Proto-Indo-European	penkʷēḱomth₂	—
10	Proto-Indo-European	*pénkʷedḱomt	—

Every word from Proto-Indo-European *pénkʷedḱomt →Every word from Proto-Indo-European penkʷēḱomth₂ →Every word from Ancient Greek πεντήκοντα →