In atrio domina cum hospite sedet et vinum miscet.

Because in can take either:

• Ablative to mean location where → in atrio = in the atrium (i.e., in/inside, at).
• Accusative to mean motion toward → in atrium = into the atrium.

Here it’s describing where the action happens, so ablative is used: in atrio.

Domina is nominative singular, meaning the mistress/lady (of the house). In this sentence it’s the subject because:

• It’s nominative.
• The verbs sedet (she sits) and miscet (she mixes) are 3rd person singular, matching a singular subject.

Latin often identifies the subject through case endings and verb endings, not word position.

Latin usually doesn’t need a separate subject pronoun because the verb ending already tells you the person/number:

• sedet = he/she/it sits
• miscet = he/she/it mixes

You could add ea (she) for emphasis or contrast, but it’s not required.

Cum takes the ablative case, so hospes (a 3rd-declension noun) becomes hospite in the ablative singular.

Key forms:

• Nominative: hospes = guest
• Ablative: hospite = with (a) guest

So cum hospite literally means with (the) guest.

With normal nouns, cum typically comes before: cum hospite.

With personal pronouns, cum is usually attached after the pronoun:

• mecum = with me
• tecum = with you
• secum = with himself/herself/themselves
• nobiscum, vobiscum

So cum hospite is the normal pattern for a noun.

Both are present tense, indicative mood, active voice, 3rd person singular.

• sedet = she sits / she is sitting
• miscet = she mixes / she is mixing

The -t ending signals 3rd singular (he/she/it).

Because miscet is a transitive verb here, and its direct object goes in the accusative:

• vinum (accusative singular) = wine (the thing being mixed)

So vinum miscet = she mixes wine.

By itself, vinum miscet just states the direct object: she mixes wine.

But culturally, Romans often mixed wine with water, so the sentence can naturally suggest she mixes (dilutes) the wine, even if the other ingredient isn’t stated. If Latin wanted to specify the other ingredient, it might add something like:

• vinum aqua miscet = she mixes wine with water (one common way)

Here et connects the two verbs/actions:

• sedet (sits)
• miscet (mixes)

So it’s one subject (domina) doing two actions in the same setting.

Latin word order is flexible because meaning is carried by endings, but different orders change emphasis. For example:

• Domina in atrio cum hospite sedet et vinum miscet. (more straightforward “subject first”)
• Vinum miscet et cum hospite sedet domina in atrio. (possible, but emphasizes vinum by putting it early)

The given order is perfectly normal and readable.