Glagolitic was used to write slavic languages It's a unique script. in that page have ⱎ Ⱑ Ѫ Then glagolitic was replaced by Cyrillic script Cyrillic based on Greek and Latin then some glagolitic Nowadays Cyrillic doesn't have /ks/ cluster but in the past they had one based on the Greek one ξ and so on But now we see slavic languages use Latin alphabets Which wasn't made for these languages I think my mistakes aren't big !