Where does “quinzieme” come from?

quinzieme (English) comes from French quinzième, from French quinze, from Middle French quinze, from Latin quindecim, from Latin decem, from Latin -nus, from Proto-Italic -nos, from Proto-Indo-European -nós — Creates verbal adjectives from roots.

quinzieme (English): A tax of one fifteenth (0.067%), particularly the excise and customs charged by John of England around 1204

Definitions

  1. A tax of one fifteenth (0.067%), particularly the excise and customs charged by John of England around 1204

Ancestry of “quinzieme”, step by step

StepLanguageWordMeaning
1Frenchquinzièmefifteenth
2Frenchquinzefifteen
3Middle Frenchquinzefifteen
4Latinquindecimfifteen; 15
5Latindecemten; 10
6Latin-nus-an
7Proto-Italic-nosCreates verbal adjectives from verb stems
8Proto-Indo-European-nósCreates verbal adjectives from roots
Every word from Proto-Indo-European -nós →Every word from Latin -nus →Every word from Latin decem →