uproar

In spite of appearances, the -roar part of the word uproar has no historical connection with the sound made by some animals. In Dutch oproer means “revolt, uprising,” having been compounded from op, “up,” and roer, “motion.” When the word was taken into English, its Dutch meaning was kept at first, but its spelling was altered to fit already familiar English words. English speakers assumed that the -roar in uproar did indeed refer to loud cries, and so the word went from meaning “uprising” to “a state of commotion.”