Where does “duplex” come from?

duplex (Italian) comes from Latin duplex, from Latin plico, from Proto-Italic plekāō, from Proto-Indo-European pleḱ-, from Proto-Indo-European pel- — to cover, to wrap; skin, hide, cloth; to fold.

duplex (Italian): party line

Definitions

  1. party line

Ancestry of “duplex”, step by step

StepLanguageWordMeaning
1Latinduplextwofold, double; bipartite, cloven; ambiguous
2LatinplicoI fold, bend or flex; I roll up; I arrive
3Proto-Italicplekāō—
4Proto-Indo-Europeanpleḱ-to fold, plait, weave
5Proto-Indo-Europeanpel-to cover, to wrap; skin, hide, cloth; to fold

Words derived from “duplex”

Every word from Proto-Indo-European pel- →Every word from Proto-Indo-European pleḱ- →Every word from Proto-Italic plekāō →