Where does “Cejka” come from?

Cejka (English) comes from Czech čejka, from Proto-Slavic čajьka, from Proto-Slavic -ьka, from Proto-Balto-Slavic -ikaʔ, from Proto-Indo-European -ikeh₂.

Ancestry of “Cejka”, step by step

StepLanguageWordMeaning
1Czechčejkalapwing
2Proto-Slavicčajьkagull
3Proto-Slavic-ьka—
4Proto-Balto-Slavic-ikaʔ—
5Proto-Indo-European-ikeh₂—
Every word from Proto-Indo-European -ikeh₂ →Every word from Proto-Slavic -ьka →Every word from Proto-Slavic čajьka →