Gives: "gzly - wl - gl - nl - nqyo" (after removing spaces: g z l y - w l - g l - n l - n q y o ) — not obviously English.
Put hyphens back where they were (original had hyphens after 5, then after 2, then 2, then 2, then 4 letters): Original: thmyl (5) - jy (2) - ty (2) - ay (2) - adlb (4) thmyl-jy-ty-ay-adlb
If that's not the intended answer, you might need to reverse the string first, then apply Atbash, which would give: Gives: "gzly - wl - gl - nl
Given the structure "thmyl-jy-ty-ay-adlb" and the fact it's presented with hyphens (likely word boundaries), a common cipher is . Let's reverse the string first: "blda-yt-ay-jy-lmht" . then after 2