Duplex Family History
Duplex Surname Meaning
From the French surname Dupleix and Duplais, the name originates from Old French plais, which means ‘hedge’ or ‘woven fence’.
The term 'plais' is combined with the preposition and definite article du, meaning ‘of the’.
This surname likely referred to someone who lived at an enclosure defined by a hedge or a fence made of interwoven branches.
As such, the name carries with it a sense of connection to the land and the natural materials used in creating boundaries.
Overall, the etymology reflects a cultural practice of defining spaces in relation to nature in French-speaking regions.
Source: The Concise Oxford Dictionary of Family Names in Britain, 2021