Where does “ciechanowski” come from?

ciechanowski (Polish) comes from Polish Ciechanów, from Polish -ów, from Polish to, from Polish -ć, from Proto-Slavic -ťi, from Proto-Slavic -kti.

Ancestry of “ciechanowski”, step by step

StepLanguageWordMeaning
1PolishCiechanów—
2Polish-ówused to create village and town names, especially...
3Polishtothis; then
4Polish-ćforms generic infinitives of stems ending in vowels
5Proto-Slavic-ťiForm of *-ti, used with root-stem verbs ending in...
6Proto-Slavic-kti—
Every word from Proto-Slavic -kti →Every word from Polish -ów →Every word from Polish -ć →