Where does “septimusdecimus” come from?

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

septimusdecimus (Latin): seventeenth

Definitions

  1. seventeenth

Ancestry of “septimusdecimus”, step by step

septimusdecimus traces back through two separate lines of ancestry.

via Latin Decimus

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

via Latin septimus

StepLanguageWordMeaning
1Latinseptimusseventh
2LatinSeptemseven; 7
3Proto-Italicseptemseven
4Proto-Indo-Europeanseptḿ̥seven
Every word from Proto-Indo-European -nós →Every word from Latin -nus →Every word from Latin decem →