The story
- Proto-Indo-European*pel-
- Proto-Indo-European*pleḱ-
- Latinplagium
- Latinplagiārius
- English todayplagiary
From Latin plagiārius (“kidnapper, plagiarist”), from plagium (“kidnapping”), probably from plaga (“a net, snare, trap”).
Etymology from Wiktionary, CC BY-SA 4.0.