- IPA(key): /ˈlapən/
- (standard) IPA(key): [ˈläpən], [ˈläpm̩]
- (northern Germany) IPA(key): [ˈla̝(ʔ)m̩]
- (Swiss) IPA(key): [ˈlɑp.pən]
The form is remarkable because of the unshifted geminate -pp- (instead of expected Old High German *lapfo). Based on the supposedly invariable nature of the consonant shift, lappo would have to be an originally Central and Low German form (compare Old Saxon lappo). This is, however, quite unlikely since the Old High German word is attested as early as the 9th century, and no variants with -pf- exist. The form remains thus unexplained.
- plural of