Where does “carpe diem cras” come from?

carpe diem cras (English) comes from Latin cras, from Proto-Italic krās, from Proto-Indo-European ḱerh₂- — head, top; horn.

Ancestry of “carpe diem cras”, step by step

carpe diem cras traces back through two separate lines of ancestry.

via Latin cras

StepLanguageWordMeaning
1Latincrastomorrow
2Proto-Italickrāstomorrow
3Proto-Indo-Europeanḱerh₂-head, top; horn

via Latin carpe diem

StepLanguageWordMeaning
1Latincarpe diemcarpe diem, enjoy the day; common mistranslation seize the day
Every word from Proto-Indo-European ḱerh₂- →Every word from Proto-Italic krās →Every word from Latin cras →