The story
- Latin · borrowed frommembrāneus“made of parchment”, “consisting of or resembling a membrane”
- Middle French · borrowed frommembraneux
- English todaymembraneous
From the Middle French membraneux, or the Classical Latin membrāneus (“made of parchment”, “consisting of or resembling a membrane”) or formed in English as: membrane + -eous.
Words from the same roots
Middle Frenchmembraneux all →
Etymology from Wiktionary, CC BY-SA 4.0.