Mensuratio hunc modulum servat.

Because mensuratio is in the nominative singular, which is the case typically used for the subject in Latin.

Here, mensuratio is the thing doing the action of servat. Even if an English speaker is tempted to look first at word order, Latin relies much more on case endings than on position.

So in this sentence:

• mensuratio = subject
• hunc modulum = direct object
• servat = verb

Hunc is the masculine accusative singular form of the demonstrative hic, haec, hoc (this).

It is not hic because hunc is modifying a direct object, and direct objects normally take the accusative case.

Since modulum is masculine singular accusative, the demonstrative has to match it:

• hic modulus = this measure/module as subject
• hunc modulum = this measure/module as direct object

So hunc agrees with modulum in:

• gender: masculine
• number: singular
• case: accusative

Because hunc modulum is a noun phrase functioning as the direct object of servat.

In Latin, when a demonstrative or adjective modifies a noun, they usually agree in:

• case
• number
• gender

So:

• modulum is accusative singular masculine
• hunc must also be accusative singular masculine

This is very normal in Latin. English does something similar with meaning, but not with endings: this module, that module, etc. Latin shows the relationship more clearly by changing the forms.

The dictionary form is modulus.

Modulum is the accusative singular form, while modulus is the nominative singular form you would usually see in a dictionary entry.

So the pattern is:

• modulus = nominative singular
• modulum = accusative singular

That tells you it is a second-declension masculine noun.

Mensuratio is a third-declension feminine noun.

Its full dictionary form would typically be:

• mensuratio, mensurationis f.

That means:

• nominative singular: mensuratio
• genitive singular: mensurationis
• gender: feminine

A learner might expect a noun ending in -o to behave like a second-declension noun, but -tio nouns are usually third declension.

Servat is:

• present tense
• indicative mood
• active voice
• third person singular

It comes from the verb servo, servare, meaning things like save, preserve, keep, or maintain, depending on context.

So servat means he/she/it preserves, keeps, or maintains.

Because the subject is mensuratio, a singular noun, the verb is also singular.

Latin normally does not use articles like English the or a/an.

That means a Latin noun can often be translated in different ways depending on context:

• mensuratio could mean measurement, a measurement, or the measurement
• modulum could mean a module/measure, the module/measure, depending on context

Latin leaves that to context unless something else makes the meaning more specific. In this sentence, hunc already adds specificity: this.

The word order is meaningful, but not as rigid as in English.

This sentence uses a very natural Latin order:

• mensuratio = subject
• hunc modulum = object
• servat = verb at the end

Latin often puts the verb last, though not always.

Because the cases show the grammatical roles, Latin could also rearrange the sentence without changing the basic meaning much, for example:

• Hunc modulum mensuratio servat.
• Servat mensuratio hunc modulum.

The emphasis might shift slightly, but the endings still tell you who is doing what.

Usually, yes, but it is worth noticing that Latin demonstratives can be a bit more nuanced than English ones.

Hic, haec, hoc often points to something near, present, or immediately relevant. In many sentences, the best English translation is simply this.

So hunc modulum means this module/measure, but the Latin form also clearly marks:

• masculine
• singular
• accusative

English this does not show those distinctions.

No. In Latin, grammatical gender is not the same as biological sex.

A noun can be feminine, masculine, or neuter simply because that is how Latin classifies it grammatically. Mensuratio is feminine because that is its grammatical gender, not because it represents a female being.

The main effect of gender here is grammatical agreement. If you used an adjective or pronoun with mensuratio, it would need a feminine form.

No. Even though servat looks a bit like English serve, it comes from Latin servo, not from the verb meaning to serve.

Common meanings of servo include:

• keep
• preserve
• save
• maintain
• observe

So this is a good example of a place where an English speaker should be careful not to guess purely by appearance.

A straightforward classroom pronunciation would be roughly:

men-soo-RAH-tee-oh hunk MO-du-lum SER-waht

A few helpful notes:

• c is always hard in classical Latin, but there is no c here.
• hunc is pronounced with a real h in careful pronunciation.
• v in classical pronunciation sounds like w, so servat is closer to serwat.
• Stress:
  • mensuratio: stress on ra
  • modulum: stress on mo
  • servat: stress on the first syllable

If you are using an ecclesiastical pronunciation system, some details may differ.

You know because hunc agrees with modulum in case, number, and gender.

That matching strongly signals that they belong together:

• hunc = masculine accusative singular
• modulum = masculine accusative singular

This is one of the most important reading skills in Latin: spotting words that agree with each other, even if they are not next to each other.

In this sentence they are next to each other, which makes it especially easy to see that hunc modulum is one unit.