flechette
A small sharp antipersonnel projectile, used as shrapnel, fired from a shotgun, or scattered from an aircraft.
countable, uncountable
The game of lawn darts.
dated, uncountable
The Game of Flechette can be confidently recommended to amuse the seniors at a garden party
1907, Country-side: A Wildlife Magazine, v. 5 (1907), p. 26. British Empire Naturalist's Association.
Where it comes from
From French fléchette (“small arrow”), diminutive of flèche (“arrow”).
Adapted from the Wiktionary entry flechette (CC BY-SA 4.0).