Macci Donaldi

The Latin meaning for „Mc Donalds“
Macci— Mc
Donaldi—Donads

Lucius ad Macci Donaldi properat.— Lucius rushs to Mc Donalds.

magnum Maccium

The Latin meaning for „Big Mac“
magnum — Big
Maccium— Mac

Lucius ad tabernam Macci Donaldi properant et magnum Maccium emunt. — Lucius rushs to the MC Donalds store and buys a Big Mac.