Perhaps it's a simple Caesar shift? Try ROT13 on the original:
Now Atbash each letter (keep hyphens): b(2)→y(25) l(12)→o(15) d(4)→w(23) a(1)→z(26) y(25)→b(2) t(20)→g(7) a(1)→z(26) y(25)→b(2) j(10)→q(17) y(25)→b(2) l(12)→o(15) m(13)→n(14) h(8)→s(19) t(20)→g(7) thmyl-jy-ty-ay-adlb
This doesn’t look like English yet. But if it's a (maybe the answer to a puzzle), the decoded phrase might be "gsnbo qb gb zb zwoy" which is nonsense — unless it's a further cipher. Perhaps it's a simple Caesar shift
Reverse original: blda-yt-ay-jy-lmht Atbash: yowz-bg-zb-qb-onsg Let’s test known Atbash of common words:
Result: "yowz - bg - zb - qb - onsg" .
The string "thmyl-jy-ty-ay-adlb" appears to be encoded, likely with a simple substitution cipher such as Atbash (where each letter is mapped to its reverse in the alphabet: A↔Z, B↔Y, etc.).
Given the puzzle is likely from a simple cipher challenge, and "thmyl-jy-ty-ay-adlb" reversed and Atbash might give "your bg is ..." ? Let’s test known Atbash of common words: