Lassitudo post longum iter adhuc in corpore manet.

The core of the sentence is:

• Lassitudo = the subject, fatigue / weariness
• manet = the verb, remains / stays

Everything else adds detail:

• post longum iter = after a long journey
• adhuc = still
• in corpore = in the body

So the skeleton is:

Lassitudo manet = Fatigue remains

and the rest tells us when and where it remains.

Because it is the subject of the sentence.

In Latin, the noun that performs or experiences the action of the verb is usually in the nominative case. Here, lassitudo is what remains, so it must be nominative.

• lassitudo = nominative singular
• meaning: fatigue, weariness, exhaustion

The verb manet is also singular, which matches the singular subject lassitudo.

Because it is governed by the preposition post.

The preposition post means after, and it takes the accusative case. So:

• post = after
• iter = journey
• longum iter = a long journey

Since iter is a neuter noun, its accusative singular form is the same as its nominative singular form: iter. The adjective longum shows the accusative singular neuter clearly.

So:

• post longum iter = after a long journey

Because iter is a neuter noun.

Latin adjectives must agree with the nouns they describe in:

• gender
• number
• case

Since iter is:

• neuter
• singular
• accusative here

the adjective must also be:

• neuter
• singular
• accusative

That gives us longum, not longus.

So:

• longus = masculine nominative singular
• longum = neuter accusative singular, matching iter

Manet is:

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

It means remains, stays, or continues to be.

It is singular because its subject, lassitudo, is singular.

So:

• lassitudo manet = fatigue remains

If the subject were plural, the verb would also be plural.

Adhuc means still, yet, or up to now, depending on context. In this sentence, still is the most natural meaning.

It modifies the idea of manet:

• adhuc manet = still remains

Latin word order is much freer than English word order, so adhuc can often be placed in different positions for style or emphasis. Here it stands between the time phrase and the location phrase:

• post longum iter adhuc in corpore manet

Even though its position varies, its sense is clear: the fatigue has not gone away yet.

Because the preposition in here expresses location, not motion toward something.

Latin uses:

• in + ablative = in / on a place, showing position
• in + accusative = into / onto, showing motion toward

Here the fatigue is remaining in the body, not moving into the body, so Latin uses the ablative:

• corpore = ablative singular of corpus
• in corpore = in the body

If there were movement into something, then the accusative would be used instead.

Corpore is the ablative singular of corpus, which means body.

Its principal forms are:

• corpus = nominative singular
• corporis = genitive singular

From those forms you can see it is a third-declension neuter noun.

In this sentence:

• in corpore = in the body

The ablative is required because in is showing place where something is.

The word order is perfectly normal for Latin, but it is more flexible than English.

Latin often places the verb near the end, so manet at the end is very natural. The sentence could be rearranged without changing the basic meaning, for example:

• Lassitudo adhuc in corpore manet post longum iter
• Post longum iter lassitudo adhuc in corpore manet
• Adhuc lassitudo in corpore manet post longum iter

These versions may sound slightly different in emphasis, but the grammar remains clear because the cases show each word’s role.

The given order is smooth and idiomatic:

• first the subject
• then the time phrase
• then adhuc
• then the place phrase
• then the verb

Not always exactly, though fatigue is a very good translation here.

Lassitudo can suggest:

• weariness
• tiredness
• exhaustion
• bodily fatigue

In this sentence, because of in corpore, the meaning is especially physical: the tiredness is still present in the body.

So while English may translate it as fatigue, weariness, or tiredness, the Latin word has a broad enough range to cover all of those depending on context.

Yes, it is a natural Latin way to express that the fatigue is still physically present.

English might say:

• The fatigue is still in the body
• The body still feels the fatigue
• The tiredness remains physically
• The weariness still lingers in the body

Latin often uses a straightforward prepositional phrase like in corpore to express this kind of idea.

So the phrase is not strange; it simply emphasizes that the effect of the journey is still being felt physically.

In this sentence, no.

Although post can sometimes have a spatial meaning such as behind, here the context clearly makes it temporal:

• post longum iter = after a long journey

That is the normal meaning when talking about what happens following an event. Since the sentence is about fatigue remaining, the time sense fits naturally.

You learn it as vocabulary, but the context helps a lot.

Iter, itineris is a neuter third-declension noun meaning:

• journey
• route
• march
• trip

Here, with longum and post, the meaning journey is the most natural:

• post longum iter = after a long journey

So both vocabulary knowledge and context point to that meaning.