Hasta
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
Lat. A spear. In the Roman law, a spear was the sign of a public sale of goods or sale by auction. Hence the phrase "hastæ subjicere" (to put under the spear) meant to put up at auction.
Calvin.
In feudal law.
A spear
The symbol used in making investiture of a fief. Feud, lib.
2, tit. 2.