Where does “Sykora” come from?

Sykora (English) comes from Czech Sýkora, from Proto-Slavic sykora, from Proto-Slavic sykati — to hiss.

Ancestry of “Sykora”, step by step

StepLanguageWordMeaning
1CzechSýkoratit bird
2Proto-Slavicsykoratit (bird of the family Paridae)
3Proto-Slavicsykatito hiss
Every word from Proto-Slavic sykati →Every word from Proto-Slavic sykora →Every word from Czech Sýkora →