Avada kedavra
Abra kedabra
Abra kedabra
“Abracadabra belongs to Aramaic, a Semitic language that shares many of the same grammar rules as Hebrew, says Cohen in Win the Crowd.
‘Abra' is the Aramaic equivalent of the Hebrew 'avra,' meaning, 'I will create. ' While 'cadabra' is the Aramaic equivalent of the Hebrew 'kedoobar,' meaning 'as was spoken.”
https://www.haaretz.com/2013-05-08/ty-article/word-of-the-da...
From the book: "about a head shorter than Harry [...] swarthy, clever face, a pointed beard [...] very long fingers and feet”, indeed.
I lol'd at the "Jewish culture" tag.
(granted, having the goblins run the banks is... not great)