pps: many many times spelling and pronunciation have traveled from place to place and got mangled like this. english is full of words spelt with french, welsh, latin, english, spanish, and other language latinisation but then end up pronounced entirely different in many places.

like, when i say 'cicada' i say it 'sikAAADa' and my irish friend doesn't understand at first and then says 'sikAYda'

this was one of the joys of being in Bulgaria, where they are really fussy about pronunciation, although they deliberately mangle everything with W to V and TH to T.