ˈtestən, -ˌstän noun
or tes·toon (ˈ)te|stün
( -s )
Etymology: Middle French teston, from Old Italian testone, aug. of testa head, from Late Latin, skull; from the fact that the obverse type on the testone was a head — more at tester
: any of several old European coins: as
a. : testone 1
b. : a French silver coin of the 16th century worth between 10 and 14 1/2 sous
c. : a shilling of Henry VII of England decreasing in value to ninepence, then to sixpence in Shakespeare's time
d. : tostão