akuperma:
There is a mesorah from Har Sinai, of course. And, yes, we do use a different language on a daily basis, as Lashon HaKodesh is both holy and powerful. Hashem created the world with utterances in that language. No, the language obviously does not change.
Lying one (DaMo):
Your idol Zionists shmaded the Yemenites even more than they shmaded the other sefardim and other Jews. Your stories are nonsense, as anyone who knows of sefardim including Yemenites would know. The Brisker Rav sent people on Shabbos to save Jews from the Zionists’ clutches.