OrinProbably from Middle French choisir.
Stummoùchoazan(first-person, indicative, present, singular) · choazez(indicative, present, second-person, singular) · choaz(indicative, present, singular, third-person) · choazomp(first-person, indicative, plural, present) · choazit(indicative, plural, present, second-person) · choazont(indicative, plural, present, third-person) · choazer(impersonal, indicative, present) · choazis(first-person, indicative, preterite, singular) · choazjout(indicative, preterite, second-person, singular) · choazas(indicative, preterite, singular, third-person) · choazjomp(first-person, indicative, plural, preterite) · choazjoc'h(indicative, plural, preterite, second-person) · choazjont(indicative, plural, preterite, third-person) · choazjod(impersonal, indicative, preterite) · choazen(first-person, imperfect, indicative, singular) · choazes(imperfect, indicative, second-person, singular) · choaze(imperfect, indicative, singular, third-person) · choazemp(first-person, imperfect, indicative, plural) · choazec'h(imperfect, indicative, plural, second-person) · choazent(imperfect, indicative, plural, third-person)