The story
- Old English · derived fromġestillan“to calm, quieten, pacify, stop”
- Middle English · derived fromistillen
- Middle English · inherited frombistillen
- English todaybestill
From Middle English bistillen, bystillen (“to silence”), equivalent to be- + still. Perhaps and alteration of earlier Middle English istillen, ȝestillen (“to make still, calm”), from Old English ġestillan (“to calm, quieten, pacify, stop”).
Etymology from Wiktionary, CC BY-SA 4.0.