The story
- Latin · derived fromimmēnsūrābilis
- Middle English · inherited fromimmensurable
- English todayimmensurable
From Middle English immensurable, from Old French, from Latin immēnsūrābilis, from im- (“not”) (variant form of in-) + mēnsūra (“measure”) + -bilis (“able”).
Etymology from Wiktionary, CC BY-SA 4.0.