Where does “stužka” come from?

stužka (Czech) comes from Czech stuha, from Old Czech stuha, from Proto-Slavic *sъtǫga.

Ancestry of “stužka”, step by step

stužka traces back through two separate lines of ancestry.

via Czech stuha

StepLanguageWordMeaning
1Czechstuharibbon strip used for decoration of clothing or the hair or gift wrapping
2Old Czechstuharibbon
3Proto-Slavic*sъtǫga—

via Czech ká

StepLanguageWordMeaning
1CzechkáThe name of the Latin-script letter K; regrets
Every word from Proto-Slavic *sъtǫga →Every word from Old Czech stuha →Every word from Czech stuha →