Thmyl Tlghram Layt Llandrwyd -
That’s messy. But if it's on QWERTY:
t ← y (since y is left of t on QWERTY) h ← g m ← n y ← t l ← k So thmyl = y g n t k → "y g n t k" (no). thmyl tlghram layt llandrwyd
Try shifting one key left instead (to decode original intended letters): That’s messy