electricidad
/eleɡtɾiθiˈdad/ · B1 · noun · f
electricity
⚡🔌 Spanish -dad = English -ty: electrici-dad = electrici-ty
Many English words ending in -ty become Spanish words ending in -dad, like city/ciudad and university/universidad. All of these are feminine: la electricidad. The root comes from Greek elektron, amber, because rubbed amber builds up static.