Where does “dỹeiro” come from?

dỹeiro (Old Portuguese) comes from Vulgar Latin dinarius, from Latin dēnārius, from Latin dēnī, from Latin decem, from Latin -nus, from Proto-Italic -nos, from Proto-Indo-European -nós — Creates verbal adjectives from roots.

Ancestry of “dỹeiro”, step by step

Step	Language	Word	Meaning
1	Vulgar Latin	dinarius	—
2	Latin	dēnārius	containing or consisting of ten things
3	Latin	dēnī	—
4	Latin	decem	ten; 10
5	Latin	-nus	-an
6	Proto-Italic	-nos	Creates verbal adjectives from verb stems
7	Proto-Indo-European	-nós	Creates verbal adjectives from roots

Words derived from “dỹeiro”

diñeiro
adiñeirado

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