The story
- Old French · derived fromafranchiss-
- Middle English · inherited fromaffranchysen
- English todayaffranchise
From late Middle English affranchysen, from Old French afranchiss-, long stem of afranchir (modern French affranchir), from a- + franchir (“to free”). By surface analysis, af- + franchise.
Etymology from Wiktionary, CC BY-SA 4.0.