czeski błąd

Etymology
lit. 'Czech error'. , although often explained as either of the following:
 * from the fact that several Czech words look like their Polish counterparts with two letters transposed; compare, for example, and ;
 * from the fact that Czech numerals can be written in two ways (i.e. can be written as  or as ), making it plausible for someone less familiar with the language to misinterpret the order of the digits.

Noun

 * 1)  switching of letters in printed text