Where does “semana” come from?

semana (Old Portuguese) comes from Latin septimāna, from Latin septimānus, from Latin septimus, from Latin Septem, from Proto-Italic septem, from Proto-Indo-European septḿ̥ — seven.

Ancestry of “semana”, step by step

semana traces back through two separate lines of ancestry.

via Latin septimāna

StepLanguageWordMeaning
1Latinseptimānaweek
2Latinseptimānusof or pertaining to the seventh in a series
3Latinseptimusseventh
4LatinSeptemseven; 7
5Proto-Italicseptemseven
6Proto-Indo-Europeanseptḿ̥seven

via Late Latin septimana

StepLanguageWordMeaning
1Late Latinseptimanaweek

Words derived from “semana

Every word from Proto-Indo-European septḿ̥Every word from Proto-Italic septemEvery word from Latin Septem