Where does “quinzenal” come from?

quinzenal (Portuguese) comes from Portuguese quinzena, from Portuguese quinze, from Old Portuguese quinze, from Latin quindecim, from Latin decem, from Latin -nus, from Proto-Italic -nos, from Proto-Indo-European -nós — Creates verbal adjectives from roots.

quinzenal (Portuguese): semimonthly

Definitions

semimonthly

Ancestry of “quinzenal”, step by step

Step	Language	Word	Meaning
1	Portuguese	quinzena	A period of fifteen consecutive days
2	Portuguese	quinze	fifteen
3	Old Portuguese	quinze	—
4	Latin	quindecim	fifteen; 15
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

Words derived from “quinzenal”

quinzenalmente

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