avert

The story

1. Latin · derived fromāvertere
2. Old French · derived fromavertir“turn, direct, avert; turn the attention, make aware”
3. Middle English · inherited fromaverten
4. English todayavert

From Middle English averten, adverten, from Old French avertir (“turn, direct, avert; turn the attention, make aware”), from Latin āvertere, from ab + vertō (“to turn”).