Ano, Prepáč, bad wording on my part. I meant the split form [i]what is now refereed to as[/i] Czechia, however the use of that verb means it's probably more appropriate to refer to what has been split from (in it's joint form). It's Friday, I'm finding it difficult to communicate in any language today. :)

I feel a bit ashamed for "well actually..."-ing a Slovak speaker on this - sorry!!!

I always wondered is there some particular reason why Czechia wasn't pushed as a geographical name right from the start (in most slavic languages it was already translated as such)?

Isn't Česká or something a used word in czech?

Yep - it's the feminine form of the adjective meaning "Czech" ("republika" being "republic" - a feminine word). Not to be confused with the similar "Čechy" which refers to Bohemia - the western half of Czech Republic.

I'm not sure why Czechia wasn't pushed from the start. Might be worth remembering that the official name for Slovakia is actually "Slovak Republic" - so maybe their short version only caught on since people were used to the "-slovakia" part of Czechoslovakia?