Etymology
From Middle English empechement (“hindrance, impediment, obstacle, obstruction; legal accusation or charge; act of calling into question or discrediting; challenge to a claim or right”), and thence either:
* from Middle English empechen, empeschen, empesche, enpechen, impechen (“to cause to get stuck; of a ship: to run aground; to block, obstruct; to hinder, impede; to prevent; to interfere with, harm; to criticize, disparage; to bring charges against; to formally accuse of treason or another high crime”) (from Anglo-Norman empecher, Old French empechier, empeechier) + -ment (suffix forming action nouns, concrete nouns, and nouns indicating a result or a condition or state); or
* from Old French empechement, empeechement, empeschement (“obstacle”) (modern French empêchement (“impediment, o