estoc
nounEtymology 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).
1
A type of sword used from the 14th to the 17th century, characterized by a long, straight, edgeless, sharply pointed blade designed for penetrating mail or plate.