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Check fayr — if Welsh, ‘fair’ means ‘next’ or ‘beautiful’ (soft mutation of ‘mae’). mydya — ‘myd’ (meed) is not Welsh; but ‘my’ = my, ‘dya’? mn — in Welsh = ‘if’ (os, not mn). bwnd — in Welsh = band? ‘Bwnd’ not standard, but ‘bwn’ = load, ‘bwnd’ might be ‘bwnd’? jyms — not Welsh (no j in traditional Welsh).
Test thmyl : t h m y l → t h m e l or t h m i l → ‘themil’ or ‘thimil’ — not a word. But thmyl could be ‘the mill’? the mill → t h e m i l l → thmyll (but we have thmyl — missing an l).
Doesn’t reveal plaintext. If we assume a simple substitution cipher where: thmyl lbt jyms bwnd llandrwyd mn mydya fayr
t (20) ↔ g (7) h (8) ↔ s (19) m (13) ↔ n (14) y (25) ↔ b (2) l (12) ↔ o (15)
lbt — ‘lbt’ = ‘lob it’? unlikely. jyms — ‘jyms’ = ‘gyms’? (j=g?). bwnd — ‘bwnd’ = ‘beyond’? (bwnd → b w n d, add e o? ‘beyond’ has 6 letters). Actually, let’s test Caesar cipher with shift of +1 (a→b) but backwards? No, systematic: Check fayr — if Welsh, ‘fair’ means ‘next’
So maybe not Welsh plaintext. thmyl — could be ‘the mill’? t h m y l → remove h, thmyl → ‘themyl’? No. If th = voiced th (as in ‘the’), m y l = ‘meal’? ‘the meal’? But missing e.
lbt = l b t → ‘l b t’ — maybe ‘lab t’? ‘lob t’? Or ‘let’? l e t → l y t? No, l b t → if b=e, then let? No, b would be e? Unlikely. bwnd — in Welsh = band
y → i or e a → unchanged? f → f? r → r. So fayr = f a y r → f a i r = fair. Works. mydya = m y d y a → m e d i a = media. Works perfectly: y→e and y→i? That’s inconsistent unless y maps to both e and i — impossible for simple substitution unless one plaintext letter maps to two ciphertext letters (unlikely).
