darrein
In the names of legal actions, pleas, writs, etc.: final, last; dernier.
historical
the assize of darrein presentment
Where it comes from
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”).
Adapted from the Wiktionary entry darrein (CC BY-SA 4.0).