TIL. From Wiktionary, looks like people thought it was involved in the formation of acids, so I guess it was "the stuff that made things sour". I knew that oxy = "sharp", but the sour thing is new for me. en.wiktionary.org/wiki/oxygen#...
'Citizen' comes from Old French 'citeien'. It got its z because it was contaminated by 'denzein', also meaning "resident". 'Citizen' later influenced 'denzein', turning it in 'denizen'. Words that are etymologically unrelated sometimes influence each other. Four examples:
Nossa, verdade, as duas bandeiras se parecem muito kkkk Como não tem a bandeira do Esperanto, nem uma estrelinha verde, acho o quadrado verde mais próximo. Adotei ele porque vi outra pessoa usando também. Mas fica meio difícil pra entender que é Esperanto mesmo.
O verde é Esperanto, pro catalão to usando a bandeira de Andorra
🇪🇸 trabajo 🇦🇩 treball 🇩🇪 Arbeit 🇬🇷 εργασία 🟩 laboro
🇧🇷 melancia 🇺🇸 watermelon 🇪🇸 sandía 🇮🇹 cocomero/anguria 🇫🇷 pastèque 🇦🇩 síndria 🇩🇪 Wassermelone 🇬🇷 καρπούζι 🟩 akvomelono