Where does “tužebný” come from?

tužebný (Czech) comes from Czech tužba, from Czech -ba, from Old Czech -ba, from Proto-Slavic -ьba — Forms action nouns from verbs.

Ancestry of “tužebný”, step by step

StepLanguageWordMeaning
1Czechtužbadesire
2Czech-baforms feminine nouns usually denoting an action,...
3Old Czech-ba—
4Proto-Slavic-ьbaForms action nouns from verbs
Every word from Proto-Slavic -ьba →Every word from Czech -ba →Every word from Czech tužba →
tužebný — Etymology, Origin & Word History | Etymology Explorer