The Roman Empire, which had ruled a broad region of Western Europe and part of Africa, divided into East and West in 395 C.E., and was invaded by Germanic races, with the West Roman Empire collapsing in 476 C.E. Linguistically, Vulgar Latin, which was used across various regions of the Empire, differentiated into each Romance language, making contact with Germanic languages such as Gothic, Old Frankish, Lombardic, and Old Norse. Through an analysis of cognate sets, this paper demonstrates how Romance vocabulary originating in pre-10th century Proto-Germanic remains in each of the modern Romance languages. Moreover, a large amount of Romance vocabulary entered into Old English from the Norman Conquest of England onwards, and the Romance vocabulary originating in Proto-Germanic naturally blended in with it. This paper examines to what degree Old English vocabulary that derives from Proto-Germanic replaced Romance vocabulary that originated from Proto-Germanic. It aims to display the diachronic influence on Romance languages that derived from the same ancestor as Germanic languages.

本稿は2016年８月７日、神戸市立六甲道勤労市民センターで開催された「欧州学フォーラム2016（創立10周年記念専門研究者会議）：ヨーロッパの言語と文化と社会」において、「ロマンス語語彙におけるゲルマン語の通時的影響」と題して口頭発表を行ったものに加筆・修正を施したものである。