trientes

Anonymous gold coins, resembling Frankish trientes in type and standard (21 grains), are also fairly common, though they must have passed out of use very early, as the laws give no hint of their existence.

Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Various

Gold coins were first issued in France by Clovis, A.D. 489; about the same time they were issued in Spain by Amalric, the Gothic king; in both kingdoms they were called _trientes_.

The Continental Monthly, Vol 3 No 3, March 1863 Devoted To Literature And National Policy Various

_Scaliger_ [2] speaking of this _Platonicke_ fancie, _quæ in tres trientes mundum quasi assem divisit_, thinks ’tis confutation enough, to say, ’tis _Plato’s_.

The Discovery of a World in the Moone Or, A Discovrse Tending To Prove That 'Tis Probable There May Be Another Habitable World In That Planet John Wilkins 1643