The story
- Medieval Latin · derived fromamassāre
- Anglo-Norman · derived fromamasser
- Middle English · inherited from*amassen
- English todayamass
From Middle English *amassen (found only as Middle English massen (“to amass”)), from Anglo-Norman amasser, from Medieval Latin amassāre, from ad + massa (“lump, mass”). See mass.
Etymology from Wiktionary, CC BY-SA 4.0.