Ut primum amici tonstrinam intrant, tonsor involucrum parat.

Ut primum is a very common Latin way to say as soon as.

• ut can have several meanings in Latin depending on context, but here it introduces a time clause.
• primum literally means first.

Together, ut primum means as soon as or immediately when.

Latin often uses fixed expressions like this, so it is best to learn ut primum as a unit in temporal sentences.

Amici is nominative plural.

It is the subject of intrant, because intrant means they enter. So:

• amici = the friends
• intrant = enter / are entering

The verb ending -nt already shows that the subject is plural, and amici matches that.

Here tonstrinam is the accusative singular, because with verbs of motion Latin often uses the accusative to show the place someone is moving into or toward.

So:

• tonstrina = a barber’s shop
• tonstrinam intrant = they enter the barber’s shop

This is normal with intrare. The direct object is the place entered.

Tonstrina means barber shop or barber’s shop.

It is related to tonsor, which means barber. The two words belong to the same word family:

• tonsor = barber
• tonstrina = barber shop

So the sentence uses both the person and the place connected with cutting hair.

Because tonsor is the subject of a different verb: parat.

The sentence has two parts:

1. Ut primum amici tonstrinam intrant
   = As soon as the friends enter the barber shop
2. tonsor involucrum parat
   = the barber prepares the cloth / covering

So:

• amici goes with intrant
• tonsor goes with parat

There is no need for both subjects to be the same number.

Tonsor is nominative singular.

It is a third-declension noun, not a second-declension noun. That is why it does not end in -us.

Many Latin masculine nouns do end in -us, but not all of them. Third-declension nouns can have a variety of nominative endings, including -or. So tonsor is perfectly normal for its declension.

Involucrum literally means something like covering, wrapper, or wrap.

In this context, it most likely means the cloth or cape the barber puts around the customer before cutting hair. So even if the English translation uses something smoother like cape or covering, the Latin word itself has the basic idea of something wrapped around someone.

Grammatically, involucrum is:

• neuter
• accusative singular here
• the direct object of parat

So tonsor involucrum parat means the barber prepares the covering.

Parat is singular because its subject is tonsor, which is singular.

• tonsor = the barber
• parat = prepares

If the subject were plural, the verb would need to be plural too, for example parant.

This is a good example of Latin subject-verb agreement:

• amici intrant
• tonsor parat

The verbs intrant and parat are both present tense forms.

In a sentence like this, the present can simply describe what happens in a general, vivid, or narrative way:

• As soon as the friends enter, the barber prepares...

Depending on the wider context, this may feel like:

• a general repeated action, or
• a vivid narrative present

So yes, English might sometimes treat this as a kind of vivid or narrative present, but nothing unusual is happening grammatically. It is just normal present tense Latin.

Latin has no articles like English the or a/an.

So a noun like tonsor can mean:

• a barber
• the barber

and tonstrinam can mean:

• a barber shop
• the barber shop

The context tells you which sense fits best. In this sentence, English will usually supply the because the situation is specific:

• the friends
• the barber shop
• the barber
• the covering

The word order is perfectly normal for Latin.

Latin relies much more on case endings than English does, so word order is more flexible. Here the structure is:

• Ut primum = temporal link
• amici = subject of the first verb
• tonstrinam = object of intrant
• intrant = first verb
• tonsor = subject of the second verb
• involucrum = object of parat
• parat = second verb

Latin often places verbs later than English, and it commonly puts a subordinate clause first. So although the order may feel unusual to an English speaker, it is very natural in Latin.

Not here. In this sentence, ut primum introduces a straightforward temporal clause, so the verb is in the indicative:

• intrant

That is what you would expect for a plain statement of time: as soon as they enter.

Latin does use the subjunctive after some conjunctions in other kinds of subordinate clauses, but this is not one of those cases.