Talus in mensa iacet.

Talus is nominative singular, which is the case normally used for the subject of a sentence.

We know it is the subject because:

• iacet means he/she/it lies or is lying
• the verb is third person singular
• talus is a singular nominative noun that matches that verb

So talus is the thing doing the lying.

Because in takes different cases depending on the meaning:

• in + ablative = location, meaning in/on/at
• in + accusative = motion into or onto something

Here the meaning is location: the object is already resting there. So Latin uses in mensa.

If the meaning were onto the table, you would expect in mensam instead.

Latin in has a wider range than English in. With the ablative, it often means being in, on, or at a place, depending on what sounds natural in English.

So with mensa (table), English usually says on the table, even though Latin uses in.

This is a good example of why you should translate by meaning, not word-for-word.

Iacet is:

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

It comes from iaceo, iacere, meaning to lie or to be lying.

So iacet means lies, is lying, or sometimes is situated.

Because iacet is more specific.

• est means is
• iacet means lies or is lying

Latin often prefers a more precise verb of position when describing where something is. So instead of just saying the die is on the table, Latin says something more like the die lies on the table.

Latin has no articles like English the or a/an.

So talus can mean:

• the die
• a die

and mensa can mean:

• the table
• a table

You decide from the context which English wording is best.

Because in the first declension, the nominative singular and ablative singular often look the same.

For mensa:

• nominative singular: mensa
• ablative singular: mensa

So the form by itself could be either one. The preposition in tells you that here it must be ablative.

Latin word order is much more flexible than English word order because the endings show the grammatical function of the words.

A verb at the end is very common in Latin, especially in simple statements. So Talus in mensa iacet is a very natural arrangement.

English depends heavily on position, but Latin depends much more on case endings and verb endings.

Yes. Latin allows several word orders without changing the basic meaning. For example:

• In mensa talus iacet
• Talus iacet in mensa
• Iacet talus in mensa

These all basically mean the same thing, though the emphasis may shift slightly. For example, putting in mensa first can emphasize the location.

Not necessarily. It is capitalized here simply because it is the first word of the sentence.

So capitalization does not prove it is a proper noun. If the word appeared in the middle of a sentence, it would normally be written talus unless it were actually being used as a name.

• talus is a second-declension noun
• mensa is a first-declension noun

In this sentence:

• talus = nominative singular
• mensa = ablative singular

Knowing the declension helps you recognize what endings are possible and what role each noun is playing in the sentence.