Bigae evertuntur; spectator delphinum et victorem spectat.

Latin does not have articles. There is no separate word for the or a/an.

So in a sentence like Bigae evertuntur; spectator delphinum et victorem spectat, English has to add articles when translating:

• the chariots
• the spectator
• the dolphin
• the winner

Which article you use depends on context, not on a Latin word.

Bigae is in the nominative plural, which is the case normally used for the subject.

You can also tell from agreement:

• bigae = plural
• evertuntur = they are overturned, also plural

So bigae is the thing being talked about in the first clause.

Evertuntur is:

• present
• passive
• indicative
• third person plural

It comes from everto.

The ending -ntur is a very important clue: it shows third person plural passive.

So evertuntur means something like:

• they are overturned
• they are being overturned

Because the sentence presents bigae as receiving the action, not doing it.

Compare:

• evertunt = they overturn
• evertuntur = they are overturned

So here the chariots are not overturning something else; they themselves are being upset or overturned.

There are two main clues:

1. Case: spectator is nominative singular, which fits a subject.
2. Verb agreement: spectat is third person singular, so it goes with a singular subject.

So:

• spectator = the subject
• spectat = he/she/it watches

Together they mean the spectator watches.

Because they belong to different declensions, so they make the accusative singular differently.

• delphinus → delphinum
  second declension masculine
• victor → victorem
  third declension masculine

Even though the endings are different, both words are doing the same job in the sentence: they are direct objects of spectat.

Because spectat is a transitive verb, so it can take a direct object, and both nouns are in the accusative singular:

• delphinum
• victorem

That tells you they are the things the spectator is watching.

So the structure is:

• spectator = subject
• delphinum et victorem = objects
• spectat = verb

Because et simply joins the two objects into one pair:

• delphinum et victorem

This means the spectator watches both of them.

Latin, like English, does not need to repeat and before every item in a simple pair.

Word order matters less in Latin than in English because the endings already show what each word is doing.

So the second clause could be rearranged in several ways without changing the basic meaning, for example:

• spectator delphinum et victorem spectat
• spectator spectat delphinum et victorem
• delphinum et victorem spectator spectat

The endings still show:

• spectator = subject
• delphinum, victorem = objects

That said, word order can still affect emphasis and style.

Because they come from the same root, spect-, connected with looking or watching.

• spectator = watcher, observer, spectator
• spectat = watches

This is very normal in Latin. In fact, English keeps many related words from the same root:

• spectator
• spectacle
• inspect
• respect
• prospect

So the similarity is not accidental; it is a helpful vocabulary clue.

The semicolon separates two closely related clauses:

• Bigae evertuntur
• spectator delphinum et victorem spectat

It shows a pause stronger than a comma, but the two parts still belong together as one scene.

You could think of it as linking two connected actions:

• first, the chariots are overturned
• then, the spectator watches the dolphin and the winner

This is a cultural point rather than a grammar point.

In Roman circus racing, dolphins could be used as decorative or symbolic markers, especially in connection with lap-counting displays. So delphinum may refer to one of those racing-associated dolphins, not necessarily a real sea animal in the arena.

A learner may find the word surprising, but grammatically it is just an accusative singular object of spectat.