In Czech, some "y" vs. "i" can't be deduced. Schoolchildren need to drill the words that use "y". Similarly to what "ѣ" had with бѣдный блѣдный бѣлый бѣсъ, exce

In Czech, some "y" vs. "i" can't be deduced. Schoolchildren need to drill the words that use "y". Similarly to what "ѣ" had with бѣдный блѣдный бѣлый бѣсъ, except our thing doesn't even rhyme :) (Not that I'm complaining. As you note, English is vastly worse in this regard.)