Where does “menstrual” come from?
menstrual (Spanish) comes from Latin menstrualis, from Latin menstrua, from Latin mēnstruus, from Latin bimestris, from Latin mēnsis, from Proto-Italic mēnsis, from Proto-Italic mēns, from Proto-Indo-European mḗh₁n̥s — to measure.
menstrual (Spanish): menstrual
Ancestry of “menstrual”, step by step