Where does “semana” come from?
semana (Classical Nahuatl) comes from Spanish semana, from Old Spanish semana, from Latin septimāna, from Latin septimānus, from Latin septimus, from Latin Septem, from Proto-Italic septem, from Proto-Indo-European septḿ̥ — seven.
semana (Classical Nahuatl): Week
Ancestry of “semana”, step by step