Libido iuvenem movet.

Because libido is in the nominative case, which is the case normally used for the subject of a sentence.

In this sentence:

• libido = subject
• iuvenem = direct object
• movet = verb

So libido is the thing doing the action of movet.

The ending -em shows that iuvenem is accusative singular. The accusative case is commonly used for the direct object, the person or thing affected by the action of the verb.

So here iuvenem is the one being moved, stirred, or affected.

This is very helpful in Latin, because case endings often tell you the job of a word more clearly than word order does.

Movet is the third person singular present active indicative of moveo, movere, meaning to move.

That tells us:

• third person = he/she/it
• singular = one subject
• present = is moving / moves
• active = the subject performs the action

So movet means he moves, she moves, or it moves.
Since the subject is libido, we translate it as desire moves or passion moves.

Latin usually has no articles. It does not normally use separate words for the, a, or an.

So:

• libido can mean desire, the desire, or sometimes a desire
• iuvenem can mean a young man, the young man, or simply the youth

The exact choice in English depends on context and natural translation.

Yes. Latin word order is much more flexible than English word order because the case endings already show the grammatical roles.

These could all mean basically the same thing:

• Libido iuvenem movet
• Iuvenem libido movet
• Movet libido iuvenem

The emphasis may change a little, but the basic meaning stays the same because:

• libido is still nominative
• iuvenem is still accusative
• movet is still the verb

That is a very common beginner question. Libido is a third-declension noun, and third-declension nominatives are often less predictable in form than first- or second-declension nominatives.

Its forms include:

• nominative singular: libido
• genitive singular: libidinis

So the important thing is not just the ending you expect from another declension, but the actual dictionary form and declension pattern of the noun.

Iuvenem comes from iuvenis, a third-declension noun meaning young man, young person, or youth.

Its accusative singular is iuvenem, which is why it appears that way here.

A few useful forms are:

• nominative singular: iuvenis
• accusative singular: iuvenem
• nominative plural: iuvenes
• accusative plural: iuvenes

So in this sentence, iuvenem means the young man or the youth as the object of the verb.

No. Although moveo can mean literal physical movement, it can also mean stir, affect, influence, or arouse emotionally.

With a subject like libido, a more natural sense is often emotional or psychological rather than physical.

So depending on context, the sentence could be understood as:

• Desire moves the young man
• Passion stirs the young man
• Lust affects the youth

The exact nuance depends on the broader context.

Not always. Libido can mean desire, longing, passion, urge, or lust, depending on context.

In some contexts it can be clearly sexual, but in others it can refer more generally to strong desire or appetite. A learner should not assume only one English word fits every time.

So if the meaning has already been given to you, it is best to follow that context rather than force a single fixed translation.

Both the noun forms and the verb form show singular.

• libido is singular
• iuvenem is singular accusative
• movet is singular verb form

If the subject were plural, you would expect a plural verb, such as movent for they move.

So the whole sentence clearly describes one desire/passion affecting one young man/youth.

Because in Latin the verb agrees with the subject, not with the nearest noun.

Here the subject is libido, so the verb is singular to match libido.
Iuvenem is the direct object, so it does not control the verb’s person and number.

This is an important habit to build in Latin: do not assume the nearest noun is the subject. Look for the case endings.

No. Iuvenem comes from iuvenis, which in many contexts refers to a young person or specifically a young man. It is not the normal way to say young woman.

A Latin learner should check the dictionary and context, but in a sentence like this, young man or youth is the natural choice.

Yes: it is very compact and typical of basic Latin practice sentences.

It shows several core features at once:

• a nominative subject: libido
• an accusative object: iuvenem
• a third person singular verb: movet
• Latin’s freedom of word order
• the importance of case endings over position

So even though the sentence is short, it is useful for practicing how Latin grammar works.