Where does “pertussis” come from?
pertussis (Spanish) comes from New Latin pertussis, from Latin tussi, from Latin tussis, from Proto-Italic tussis, from Proto-Indo-European tud-ti-s, from Proto-Indo-European (s)tewd-, from Proto-Indo-European stew- — to praise, laud.
pertussis (Spanish): pertussis
Ancestry of “pertussis”, step by step