English
interplea
From inter- + plea.
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁entér ‘between’
Proto-Italic *n̥ter ‘between’
Latin inter ‘between’
English inter-
Medieval Latin placere ‘to please’
Medieval Latin placitum ‘a decree, sentence, suit, plea, etc., Latin…’
Old French plait ‘argument’
Middle English ple ‘disputation, arguing, debate’
English plea
Today it means
noun An action ingrafted on another suit, in which the interpleader becomes the plaintiff and the attaching plaintiff is the defendant.
Language periods are conventional ranges, not dates for this word.
Etymograph / interplea