- sivve (Moselle Franconian, westernmost and easternmost Ripuarian)
From Old High German sibun, from Proto-Germanic *sebun, from Proto-Indo-European *septḿ̥. The regular Central Franconian form is sivve. The form with -bb- is based on standard German sieben. According to its limited geographical range, it must have spread from Cologne and is probably more recent than the (also non-native) forms fönnef (“five”) and sechs (“six”).