Camp language produced a Polish verb meaning to become a Muslim

Evidence

“Muslim,” the noun, can thus also turn verb, or at least participle: “The following day, when we were again driven out to work, a ‘Muslimized’ Jew from Estonia who was helping me haul steel bars tried to convince me all day that human brains are, in fact, so tender you can eat them absolutely raw” (Borowski, “The Supper,” in This way for the Gas, 156). See Ryn and Klodzinski on the Polish verb “to become a Muslim, muzulmanie,” roo. — Gil Anidjar, The Jew, the Arab, 1210