The story
- Proto-Germanic · inherited from*bifallaną
- Proto-West Germanic · inherited from*bifallan
- Old English · inherited frombefeallan
- Middle English · inherited frombifallen
- English todaybefall
From Middle English bifallen, from Old English befeallan, from Proto-West Germanic *bifallan, from Proto-Germanic *bifallaną; equivalent to be- + fall.
Etymology from Wiktionary, CC BY-SA 4.0.