Where does “peso” come from?

peso (Esperanto) comes from Esperanto pesi, from French peser, from Middle French peser, from Old French peser, from Latin pēnsāre, from Latin pendēre, from Latin pendō, from Proto-Italic pendō — to stretch.

peso (Esperanto): peso

Definitions

  1. peso

Ancestry of “peso”, step by step

peso traces back through two separate lines of ancestry.

via Esperanto pesi

StepLanguageWordMeaning
1Esperantopesito weigh
2Frenchpeserto weigh; To weigh
3Middle Frenchpeserto weigh
4Old Frenchpeserto weigh; to be a burden or a worry
5Latinpēnsāre
6Latinpendēre
7Latinpendōto weigh, weigh out
8Proto-Italicpendōhang, put in a hanging position
9Proto-Indo-European(s)péndeti
10Proto-Indo-European(s)pend-to stretch

via Spanish peso

StepLanguageWordMeaning
1Spanishpesoweight; weight class; peso
2Old Spanishpesoweight
3Vulgar Latinpesum
4Latinpēnsumallotment, portion, weight (of wool measured out to a slave to spin in a day)
5Latin-sumaccusative singular of -sus
6Latin-susAlternative form of -tus
7Proto-Italic*-sos
Every word from Proto-Indo-European (s)pend-