easement

The story

1. Middle French · derived fromaisement“comfort, convenience, ease, facility, opportunity; a benefit, relief; a right to use land, a thing, etc.; a privy”
2. Anglo-Norman · derived fromaisement
3. English todayeasement

From Anglo-Norman aisement, easement, eisement, esament, esement, and Middle French aisement (“comfort, convenience, ease, facility, opportunity; a benefit, relief; a right to use land, a thing, etc.; a privy”), from aisier (“to put at ease; to facilitate”) + -ment (“-ment, suffix forming nouns, usually the action or state resulting from verbs”).