Magistra prudenter discipulos monet ne nimis celeriter scribant.

Magistra is nominative singular. It is the subject of the main verb monet.

• magistra = the female teacher
• nominative is the case normally used for the subject

So magistra is the person doing the warning/advising.

Discipulos is accusative plural because it is the direct object of monet.

The verb moneo, monere can take a person as its object:

• aliquem monere = to warn/advise someone

So here:

• magistra ... discipulos monet = the teacher warns/advises the students

Monet is:

• 3rd person singular
• present tense
• active voice
• indicative mood

It comes from moneo, monere.

So grammatically it means she warns / advises or the teacher warns / advises.

Prudenter is an adverb, so it modifies the verb monet.

It tells us how the teacher gives the warning/advice:

• prudenter monet = she warns wisely / sensibly / prudently

It does not describe magistra directly as an adjective would. If it were an adjective describing the teacher, it would need to agree with magistra in gender, number, and case.

They are both adverbs.

Many Latin adverbs are formed from adjectives, often with endings like -e or -ter.

Here:

• prudens → prudenter = wisely
• celer → celeriter = quickly

So the -ter ending is a normal adverb ending, especially with certain adjective types.

Ne is used because this is a negative subordinate clause of warning/advice/command, not just a simple statement being negated.

After verbs like moneo when Latin expresses warning someone not to do something, it commonly uses:

• ne + subjunctive

So:

• monet ne scribant = she warns them not to write

By contrast, non usually just negates a word or statement:

• non scribunt = they do not write

So ne is the right choice for “not to ...” after a verb of warning/advising.

Because it is in a clause introduced by ne after monet.

This type of clause is commonly treated as an indirect command or subordinate clause of warning/advice, and Latin uses the subjunctive there.

So:

• scribunt = they write
  
  • ordinary indicative statement
• scribant = that they write / that they should write
• ne scribant = that they not write / not to write

After monet, Latin wants the subjunctive in this construction.

Scribant is:

• 3rd person plural
• present tense
• active voice
• subjunctive mood

It comes from scribo, scribere.

The -ant ending shows 3rd person plural present subjunctive for a 3rd-conjugation verb.

So it refers to the students, and means that they write / should write in this kind of clause.

The present subjunctive is normal here because the warning concerns an action that is contemporaneous with or subsequent to the main verb monet.

In simpler terms, the teacher is warning them about what they are to do:

• monet ne ... scribant = she warns them not to write / not to be writing too quickly

Latin uses the present subjunctive very naturally in this kind of indirect command or prohibition after a present main verb.

Nimis modifies celeriter.

So the structure is:

• celeriter = quickly
• nimis celeriter = too quickly

This is like English, where one adverb can modify another:

• too quickly
• very carefully

Here nimis intensifies celeriter.

Grammatically, it goes with monet.

Because prudenter is an adverb, it modifies a verb, adjective, or another adverb. Here it most naturally modifies the verb:

• Magistra prudenter discipulos monet
  = The teacher wisely warns the students

Of course, this also implies something about the teacher, but grammatically the word is attached to the action of warning, not directly to the noun magistra.

Yes, Latin could arrange the words differently.

Latin word order is more flexible than English because the endings show the grammatical relationships. This sentence could be rearranged without changing the basic meaning, for example:

• Discipulos magistra prudenter monet ne nimis celeriter scribant.
• Magistra discipulos ne nimis celeriter scribant prudenter monet.

The given order is natural and clear:

• Magistra first: the subject is introduced immediately
• prudenter near monet: shows how she warns
• discipulos before monet: object comes before the verb, which is very common in Latin
• ne ... scribant after monet: the content of the warning comes at the end

So the order is stylistic and emphatic, not random.

Yes, that is a useful way to understand it.

After verbs like moneo, rogo, impero, and similar verbs of advising, asking, or commanding, Latin often uses a subordinate clause with the subjunctive. In this sentence, the negative form is:

• ne + subjunctive

So ne nimis celeriter scribant functions like:

• not to write too quickly
• that they should not write too quickly

Different books may label it slightly differently:

• indirect command
• subordinate jussive clause
• clause of warning/advice

But the important point is that it is a dependent clause expressing what the students are being told not to do.

Because Latin often prefers a subjunctive clause where English might use an infinitive.

English says:

• The teacher warns the students not to write too quickly.

Latin commonly says:

• magistra discipulos monet ne ... scribant

So instead of a bare infinitive like not to write, Latin uses:

• ne + subjunctive

This is one of the places where Latin and English structure the sentence differently.

Yes. Moneo has a range of meanings including:

• warn
• advise
• remind
• instruct

The exact shade depends on context.

In this sentence, because of ne nimis celeriter scribant, the sense is something like:

• warns them not to write too quickly
• or advises them not to write too quickly

Both are reasonable, though warns is often the most direct fit.

From the context and syntax.

The students are the people being warned:

• discipulos monet = she warns the students

Then the clause ne ... scribant gives the content of that warning. So the understood subject of scribant is the same group:

• they = the students

Latin often leaves subjects unstated when they are clear from the verb ending and context. The -ant ending already tells us the subject is 3rd person plural.