The story
- Middle French · derived frommal engin
- Anglo-Norman · derived frommal engin
- Middle English · inherited frommale engyn
- English todaymalengine
From Middle English male engyn, male engyne, from Anglo-Norman mal engin, Middle French mal engin, from mal (“bad, evil”) + engin (“ruse; trickery; deception”).
Etymology from Wiktionary, CC BY-SA 4.0.