Questions & Answers about Quinarius et victoriatus in moneta sunt.
They are both in the nominative singular.
In this sentence, they are the things being talked about, so they function as the subject. Even though each noun is singular by itself, the two nouns are linked by et (and), so together they make a compound subject.
That is why the verb is plural: sunt = they are.
Because Latin, like English, uses a plural verb with two singular nouns joined by and.
So:
- quinarius = one coin/type
- victoriatus = one coin/type
- quinarius et victoriatus = two items together
Therefore:
- sunt = are
Compare English: The penny and the dollar are coins, not is.
Et simply means and.
It connects quinarius and victoriatus into one coordinated phrase:
- quinarius et victoriatus = the quinarius and the victoriatus
This is a very common Latin conjunction, and it works much like English and.