Sources ; Schriftgeschichte; Sprachwandel (graphet./graphem.) ; Language change (graphet./graphem.) ; Letter change; Buchstabenwandel; Writing system (history) ; Names (of letters) ; Akrophonie; Acrophony; Letter names ; Runic alphabet ; Graphemics, contrastive; Graphemik, kontrastive; Contrastive graphemics ; Old High German ; Anglo-Saxon; Old English ; Gothic ; Lateinisch; Latin