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In the world, Błąd (Błąd ) is an extremely rare unknown gender forename. Much more frequently, Błąd is the last name as well as the forename.
Blad, and Wielbłąd
Adam, Marta, Karol, Piotr, James, Monika, Dorota, Mateusz, Ewelina, Zuzanna, Karolina, Magdalena, and Stanisław