The story
- Latin · derived fromtortuōsus
- Old French · derived fromtortuos
- Middle English · inherited fromtortuous
- English todaytortuous
From Middle English tortuous, tortuose, from Anglo-Norman and Old French tortuos, from Latin tortuōsus, from tortus (“a twisting, winding”).
Etymology from Wiktionary, CC BY-SA 4.0.