Quamvis dissensio de uno verbo maneat, nullum convicium inter discipulos auditur.

Because quamvis often introduces a concessive clause: a clause meaning although or even though.

In Classical Latin, quamvis is commonly followed by the subjunctive, so:

• quamvis ... maneat = although ... remains

So the subjunctive here is not mainly showing doubt. It is there because the grammar of quamvis normally calls for it.

Here quamvis means although or even though.

It is made from:

• quam = how
• vis = you want / you may want

But in this sentence you should treat it as a fixed conjunction meaning although.

So:

• Quamvis dissensio de uno verbo maneat = Although disagreement about one word remains

Dissensio is nominative singular feminine.

Its role is the subject of maneat:

• dissensio = the disagreement
• maneat = remains

So literally:

• dissensio maneat = the disagreement remains

It is a 3rd-declension noun:

• nominative singular: dissensio
• genitive singular: dissensionis

Verbo is ablative singular, because the preposition de takes the ablative.

So:

• de
  • ablative = about, concerning, over
• uno verbo = one word

Together:

• de uno verbo = about one word / over one word

This is a very normal Latin construction.

Because convicium is a neuter noun, so the adjective must match it.

• convicium = neuter singular
• therefore nullum = neuter singular

So:

• nullum convicium = no insult

A point that often confuses learners: in neuter singular, the nominative and accusative have the same form. Here nullum convicium is the subject of the passive verb auditur, so it is nominative, even though it looks like an accusative form.

Yes.

Because the verb auditur is passive:

• auditur = is heard

So the thing being heard becomes the grammatical subject:

• nullum convicium auditur = no insult is heard

Since convicium is neuter singular, its nominative singular is convicium, which looks the same as the accusative singular. That is why it may look strange at first.

Auditur is:

• 3rd person singular
• present tense
• passive voice
• from audio, audire = to hear

So:

• audit = he/she/it hears
• auditur = he/she/it is heard

Here it agrees with nullum convicium, which is singular:

• nullum convicium auditur = no insult is heard

Inter takes the accusative case.

So:

• inter discipulos = among the students / between the students

Here discipulos is accusative plural of discipulus.

This is a standard prepositional phrase:

• inter + accusative

Not with quite the same feeling.

• inter discipulos means among the students, emphasizing the group and the relationships within it.
• in discipulis would more naturally mean something like in the students, which is not what is wanted here.

So inter discipulos is the natural Latin way to say that no insult is heard among them.

That is a very common Latin word-order pattern.

Latin often places the verb:

• at the end of a clause
• or near the end for emphasis or structure

So we get:

• Quamvis dissensio de uno verbo maneat
• nullum convicium inter discipulos auditur

This helps give the sentence a balanced, formal feel. Latin word order is more flexible than English, but this arrangement is very normal.

Because it agrees with verbo, and verbo is ablative after de.

So:

• de requires ablative
• verbo is ablative singular
• uno must also be ablative singular to match it

Agreement in Latin means adjectives match their nouns in:

• gender
• number
• case

So uno verbo is a matching pair.

The sentence has two clauses:

1. Quamvis dissensio de uno verbo maneat

   • a subordinate concessive clause
   • introduced by quamvis
   • uses the subjunctive

2. nullum convicium inter discipulos auditur

   • the main clause
   • uses the indicative passive verb auditur

So the structure is:

• Although X remains, Y is heard

More specifically:

• concessive clause first
• main statement second

This is a very common and elegant Latin sentence pattern.

Not exactly, though those can be good English translations depending on context.

Dissensio means:

• disagreement
• difference of opinion
• sometimes dissension

In this sentence it suggests that there is still a disagreement, but not necessarily open hostility. That fits well with the second clause, where we are told that no convicium is heard.

So the contrast is something like:

• disagreement still exists
• but it has not turned into abuse

Convicium means something like:

• insult
• abusive shouting
• reproach
• an offensive outcry

It is stronger than a simple neutral remark. The sentence contrasts intellectual disagreement with personal abuse:

• there may be disagreement
• but there is no insulting language

That contrast is an important part of the tone.