Where does “sum” come from?

sum (Vulgar Latin) comes from Latin suus, from Proto-Italic sowos, from Proto-Indo-European sewos, from Proto-Indo-European swé — self.

sum (Vulgar Latin): to be, exist, have; to be there; to go

Definitions

  1. to be, exist, have; to be there; to go

Ancestry of “sum”, step by step

sum traces back through two separate lines of ancestry.

via Latin suus

StepLanguageWordMeaning
1Latinsuushis, her, its, their
2Proto-Italicsowoshis, her, its, their
3Proto-Indo-Europeansewos(one's) own; his, her, its
4Proto-Indo-Europeanswéself

via Latin suum

StepLanguageWordMeaning
1Latinsuumaccusative singular masculine of suus; nominative...

Words derived from “sum”

Every word from Proto-Indo-European swé →Every word from Proto-Indo-European sewos →Every word from Proto-Italic sowos →