The spelling of the word "kqrs" may seem unconventional, but it is a mnemonic device used by some radio stations to help listeners remember their call letters. The IPA phonetic transcription for this word would be /kjuː kjuː ɑːr ɛs/. The letters "kqrs" represent the sounds of the individual letters in their order, with "k" and "q" combined to represent the sound "kjuː". While this form of spelling may not be recognized by most dictionaries, it serves as a useful tool for broadcasters and their audiences.
The word "kqrs" does not have an etymology because it is not a recognized word in any language. It appears to be a combination of random letters rather than a meaningful term.