The Spanish word 'campanazo' meaning 'loud bell ring' comes from combining the Spanish word 'campana' (bell) with the augmentative suffix '-azo'. The word 'campana' itself has an interesting origin - it comes from Late Latin 'campana' (bell), which derives from 'Campania', a region in Italy. Bells were historically associated with Campania because the region was known for producing high-quality bronze bells in ancient times.

The augmentative suffix '-azo' in Spanish is used to indicate something large, forceful, or intense. When added to 'campana', it creates 'campanazo' which specifically refers to a loud or powerful ring of a bell, rather than just the bell itself.

The simpler and more common Spanish word 'campana' (bell) is directly related to 'campanazo'. Other related Spanish words include 'campanario' (bell tower), 'campanilla' (little bell), and 'campanero' (bell-ringer). All these words share the same root referring to bells, with different suffixes modifying their specific meanings.

While English doesn't have direct cognates from the Latin 'campana', we do use the term 'campanology' to refer to the study and art of bell-ringing, and 'campanile' (borrowed from Italian) to refer to a bell tower. These words share the same Latin origin as the Spanish 'campanazo'. The geographical name 'Campania' itself survives in English as the name of the Italian region where this word originated.