The Spanish word 'campana' (meaning 'bell') comes from the Latin word 'campana' which also meant 'bell'. Interestingly, this Latin word originated from 'Campania', the name of a region in Italy. The connection exists because the best quality bronze bells in ancient Roman times were manufactured in this region, leading to bells becoming associated with the place name. Over time, the geographical term became the general word for 'bell' in Latin, which was then inherited by Spanish.

Some related Spanish words include 'campanario' (bell tower), 'campanilla' (little bell or doorbell), and 'campaneo' (bell ringing). These words all share the root 'campan-' referring to bells.

While English 'bell' is not related to 'campana', English has borrowed some words from this Latin root, such as 'campanile' (a bell tower, especially a free-standing one) and 'campanology' (the study or art of bell ringing). These are somewhat technical terms that you might encounter in architecture or music contexts.