The Spanish verb 'recargar' (meaning 'to reload') combines two elements: the prefix 're-' from Latin meaning 'again', and the verb 'cargar' meaning 'to load'. The base verb 'cargar' comes from Vulgar Latin 'carricare' meaning 'to load', which itself derives from the Latin noun 'carrus' meaning 'cart' or 'wagon'. This etymology shows how the concept of loading cargo onto a cart or wagon evolved into the more general meaning of loading or reloading in Spanish.

The simpler and more common Spanish word 'cargar' (to load) is directly related to 'recargar', being its base verb. Other common related Spanish words include 'carga' (load, burden), 'cargo' (cargo, load), and 'cargador' (charger, loader). All these words share the basic concept of carrying or bearing a load.

English speakers might recognize the connection to words like 'cargo' and 'charge', which share the same Latin ancestry. The English word 'cargo' refers to goods transported by ship, plane, or vehicle, while 'charge' has multiple meanings including 'to load' (as in charging a battery) and 'to rush forward' (perhaps originally referring to a loaded cart moving forward). The word 'car' itself, though now primarily meaning 'automobile', also traces back to the Latin 'carrus' meaning 'cart' or 'wagon'.