The story
- Proto-West Germanic · derived from*stokōn“to push, thrust”
- French · borrowed fromestoc
- English todayestoc
From French estoc, ultimately from Proto-West Germanic *stokōn (“to push, thrust”); see there for more. Compare Middle English touk (“a sword”) (whence obsolete English tuck (“rapier, sword”)), Middle English stok(e) (“blow with a sword”) (both probably from Old French estoc).
Words from the same roots
Proto-West Germanic*stokōn all →
Etymology from Wiktionary, CC BY-SA 4.0.