Breakdown of Mater ad pistrinum venit et panem recentem emit.
Questions & Answers about Mater ad pistrinum venit et panem recentem emit.
Mater is in the nominative singular. It is the subject of the sentence, the person doing the actions venit and emit.
In Latin, the subject of a finite verb is normally put in the nominative case. So mater means mother as the subject, not mother as an object.
Latin uses ad with the accusative case to show motion toward a place. So ad pistrinum means to the bakery or toward the bakery.
That is why you do not see pistrino here. Pistrino would be a different case, and with ad Latin expects the accusative: pistrinum.
Here pistrinum is accusative singular, because it follows ad. It is a second-declension neuter noun, so its nominative and accusative singular are both pistrinum.
So the -um ending is not random; it is the normal form for this noun in that declension and number.