The story
- Proto-Germanic · derived from*brastōną
- Proto-West Germanic · inherited from*brastulōn
- Old English · inherited frombrastlian
- Middle English · inherited frombrustlen
- English todaybrustle
From Middle English brustlen, variant of brastlen, from Old English brastlian, from Proto-West Germanic *brastulōn, from Proto-Germanic *brastōną. Related to German prasseln (“to crackle”). See burst.
Etymology from Wiktionary, CC BY-SA 4.0.