Etymology. From hōc + diē (ablative masculine singular), meaning "on this day". Compare Welsh heddiw, Breton hiziv, German heute (“today”), which are semantically the same construction, but with etymologically unrelated roots, hence not cognate.
What does the name hodie mean?
Hodie is a Latin adverb meaning "today" or "at the present time".
What does Gaudeamus hodie mean?
Gaudeamus, gaudeamus hodie. Literal English translation: Let us rejoice today.