demandar
/demanˈdaɾ/ · B1 · verb
to insist, ask, request
⚖️ Looks like demand, but in court: demandar = make a legal demand, i.e. sue
From Latin demandare, to entrust or order (de- + mandare). Like English demand it can mean to ask for or insist, but its everyday Spanish sense is legal: demandar a alguien = to sue someone, and una demanda is a lawsuit.