The story
- Late Latin · derived from*deretrānus“to hinder”
- Old French · derived fromdarrein
- Anglo-Norman · derived fromderreyn
- English todaydarrein
From Anglo-Norman derreyn, dreyn; from Old French darrein, darrain (Modern French dernier); from an assumed Late Latin *deretrānus (“to hinder”), from dē (“from, away from”) + retrō (“back, backwards; before, formerly”).
Etymology from Wiktionary, CC BY-SA 4.0.