Where does “decimale” come from?

decimale (Latin) comes from Latin decimalis, from French décimal, from Medieval Latin decimalis, from Latin Decimus, from Latin decem, from Latin -nus, from Proto-Italic -nos, from Proto-Indo-European -nós — Creates verbal adjectives from roots.

decimale (Latin): nominative neuter singular of decimālis;...

Definitions

nominative neuter singular of decimālis;...

Ancestry of “decimale”, step by step

Step	Language	Word	Meaning
1	Latin	decimalis	decimal
2	French	décimal	decimal
3	Medieval Latin	decimalis	—
4	Latin	Decimus	originally used for a tenth-born son
5	Latin	decem	ten; 10
6	Latin	-nus	-an
7	Proto-Italic	-nos	Creates verbal adjectives from verb stems
8	Proto-Indo-European	-nós	Creates verbal adjectives from roots

Every word from Proto-Indo-European -nós →Every word from Latin -nus →Every word from Latin decem →