onza
noun
on·za
ˈȯnzə,
-n(ˌ)sä,
-n(ˌ)thä
plural -s
1
: an old Spanish gold doubloon
2
: a Mexican bullion coin denomination signifying its weight in silver, gold, or platinum
also : a Mexican bullion coin of one onza
Word History
Etymology
Spanish, literally, ounce, from Latin uncia ounce, twelfth part