proto-Germanic in English dictionary Proto-Germanic Meanings and definitions of "proto-Germanic" Hypothetical prehistoric ancestor of all Germanic languages, including English. proper Hypothetical prehistoric ancestor language of all Germanic languages, including English. hypothetical prehistoric ancestor language Hypothetical prehistoric ancestor of all Germanic languages. more proto-Germanic Sample sentences with "proto-Germanic" Declension Stem Try again Available translations Belarusian Catalan Colognian Czech Danish Dutch Estonian Faroese Finnish French Galician Georgian German Greek Icelandic Italian Japanese Korean Latin Macedonian Norwegian Norwegian Nynorsk Persian Polish Portuguese Romanian Russian Slovenian Spanish Swedish Turkish Western Frisian Authors