Amica diotam tenet ne ea cadat neve ansa frangatur.

• amica: nominative singular; the subject
• diotam: accusative singular; the direct object
• tenet: she holds
• ne: introduces a negative purpose clause, so that ... not / lest
• ea: nominative singular feminine pronoun; the subject of cadat
• cadat: present subjunctive, may fall
• neve: and that not / nor
• ansa: nominative singular; the subject of frangatur
• frangatur: present subjunctive passive, may be broken

So the sentence has a main clause, Amica diotam tenet, followed by a negative purpose clause with two coordinated parts.

Amica is in the nominative singular, which is the normal case for the subject of a finite verb in Latin. It also matches tenet, which is third person singular.

A native English speaker may want an article here, but Latin has no words for the or a/an, so amica can mean the friend, a friend, or more specifically the female friend, depending on context.

Because it is the direct object of tenet. The friend is doing the action of holding, and the thing being held is diotam.

The ending -am shows accusative singular for a first-declension noun. Diota is a Latinized Greek word for a kind of jar or vessel.

Here ne means so that ... not or lest. It introduces a negative purpose clause.

So after tenet, Latin is explaining the purpose of the holding: she holds the jar so that it may not fall. English often uses so that it doesn't fall, but Latin normally uses ne plus the subjunctive.

They are subjunctive because they are inside a purpose clause introduced by ne and neve.

This is a very common Latin pattern:

• ut
  • subjunctive = positive purpose
• ne
  • subjunctive = negative purpose

The present subjunctive is used because the main verb tenet is present, and the purpose is simultaneous with that action.

Ne introduces the first negative purpose: that it may not fall.

Neve adds a second negative idea: and that the handle may not be broken. It means something like and not, nor, or and that not.

So ne ... neve ... is a neat Latin way to say:

• so that X does not happen
• and so that Y does not happen either

Ea refers back to diotam.

It is ea because it is:

• feminine singular, agreeing with diota
• nominative, because it is the subject of cadat

It is not eam, because eam would be accusative, and the subject of cadat must be nominative.

It is not id, because id is neuter, while diota is feminine.

A useful point here is that Latin often omits pronouns, but in this sentence ea helps make it clear that the thing that might fall is the jar, not the friend.

Ansa is nominative because it is the subject of frangatur.

Latin often leaves out possessive words when the meaning is obvious from context. So ansa here is naturally understood as the handle of the jar or its handle, even though Latin does not explicitly say its.

If Latin wanted to be more explicit, it could say eius ansa, meaning its handle. But that is not necessary here.

Because the handle is not doing the breaking; it is the thing affected by the action.

Frango is usually a transitive verb meaning break something. So:

• active: aliquis ansam frangit = someone breaks the handle
• passive: ansa frangitur = the handle is broken / gets broken

In this sentence, the meaning is that the friend is holding the jar to prevent damage to the handle, so the passive frangatur is exactly what you would expect.

Latin word order is more flexible than English word order because case endings show grammatical function.

This order is natural and clear:

• main clause first: Amica diotam tenet
• then the purpose clause: ne ea cadat neve ansa frangatur

The pronoun ea is placed before cadat, and ansa before frangatur, which makes each small clause easy to follow.

A different word order would be possible, but this one is straightforward and elegant.

Normally, no. For a negative purpose clause, Classical Latin uses ne, not ut non.

So:

• ut cadat = so that it may fall
• ne cadat = so that it may not fall

Ut non is more commonly found in other constructions, especially negative result clauses. In this sentence, ne ... neve ... is the standard and expected Latin pattern.