Thanks for that, @FlashingLights, interesting.
@Owlbethere, never knew that. Should I ever start to learn Welsh I shall remember that. I think my dad once said a similar thing about Latin, but I'm not sure that that's not a figment of my imagination! (And he was the sort of man who pronounced 'Conduit' as 'cundit'. His best friend said 'cumputer' and also 'heelicopter', so maybe I should ignore all my childhood pronunciations!)