Where does “jehowitka” come from?

jehowitka (Polish) comes from Polish jehowita, from Polish Jehowa, from Polish -a, from Old Polish -ą, from Proto-Slavic -a, from Proto-Indo-European -ōd.

Ancestry of “jehowitka”, step by step

StepLanguageWordMeaning
1PolishjehowitaJehovah's Witness
2PolishJehowaJehovah
3Polish-aforms nominative feminine nouns
4Old Polish-ąforms third person plural of verbs
5Proto-Slavic-aid
6Proto-Indo-European-ōd—
Every word from Proto-Indo-European -ōd →Every word from Polish -a →Every word from Proto-Slavic -a →