Where does “krzesełko” come from?

krzesełko (Polish) comes from Polish krzesło, from Old Polish krzasło, from Proto-Slavic krěslo, from Proto-Balto-Slavic kréˀsla.

Ancestry of “krzesełko”, step by step

StepLanguageWordMeaning
1Polishkrzesłochair
2Old Polishkrzasło—
3Proto-Slavickrěsloarm-chair, chair
4Proto-Balto-Slavickréˀsla—
Every word from Proto-Balto-Slavic kréˀsla →Every word from Proto-Slavic krěslo →Every word from Old Polish krzasło →