An Etymological Dictionary of the German Language/Annotated/Pfinztag

by Friedrich Kluge

Pfinztag, masculine, ‘Thursday,’ from Middle High German pfinztac; a word peculiar to Bavarian-Austrian, based on Gothic *pinta, equivalent to Greek πέμπτη (Modern Greek πέφτη), ‘Thursday.’ It seems to have been introduced by Arians with Pfingsten and Samstag (see also Kirche and Pfaffe); compare Old Slovenian pętŭkŭ, ‘Friday.’