Written language ; Phonemwandel; Sound change (phonem.) ; Sprachwandel (phonem.) ; Language change (phonem.) ; Allophonic change; Sound change (phonet.) ; Language change (phonet.) ; Sprachwandel (phonet.) ; Phonological change ; Schriftgeschichte; Sprachwandel (graphet./graphem.) ; Language change (graphet./graphem.) ; Letter change; Buchstabenwandel; Writing system (history) ; Vowel system ; Pitch (phonem.) ; Early Modern High German ; Old Middle Franconian ; Ribuarisch; Ripuarian
