The story
- Late Latin · derived fromirreconciliābilis
- Middle French · borrowed fromirréconciliable
- English todayirreconcilable
Borrowed from Middle French irréconciliable, from Late Latin irreconciliābilis, from in- (“not”) + reconciliō (“to reconcile”) + -ābilis (“-able”). By surface analysis, ir- + reconcilable.
Etymology from Wiktionary, CC BY-SA 4.0.