Where does “decimoterzo” come from?

decimoterzo (Italian) comes from Italian decimo, from Latin Decimus, from Latin decem, from Latin -nus, from Proto-Italic -nos, from Proto-Indo-European -nós — Creates verbal adjectives from roots.

decimoterzo (Italian): thirteenth referring to popes, kings, etc

Definitions

  1. thirteenth referring to popes, kings, etc

Ancestry of “decimoterzo”, step by step

decimoterzo traces back through two separate lines of ancestry.

via Italian decimo

StepLanguageWordMeaning
1Italiandecimotenth; first-person singular present of decimare
2LatinDecimusoriginally used for a tenth-born son
3Latindecemten; 10
4Latin-nus-an
5Proto-Italic-nosCreates verbal adjectives from verb stems
6Proto-Indo-European-nósCreates verbal adjectives from roots

via Italian terzo

StepLanguageWordMeaning
1Italianterzothird; uninvolved, neutral, third-party; others
2Latintertiusthird, the ordinal number after secundus and...
3Latintrēsthree; 3
4Proto-Italictrēsthree
5Proto-Indo-European*tréyes
Every word from Proto-Indo-European -nós