Where does “summa” come from?

Summa comes from Latin summa, the feminine form of summus meaning "highest," which derives from Latin super meaning "over," ultimately from Proto-Indo-European upo meaning "under" or "up from below."

summa (English): A comprehensive summary of, or treatise on a...

Definitions

  1. A comprehensive summary of, or treatise on a...

Ancestry of “summa”, step by step

summa traces back through two separate lines of ancestry.

via Latin summa

StepLanguageWordMeaning
1Latinsummatop, summit, highest point or place; the...
2Latinsummushighest, greatest, the most high; top, on top
3Proto-Italicsupemos
4Proto-Indo-European(s)úp-m̥mo-s
5Proto-Indo-Europeanupóunder, below
6Proto-Indo-Europeanh₃ewp-

via Italian Summa

StepLanguageWordMeaning
1ItalianSumma
Every word from Proto-Indo-European h₃ewp-