The Spanish word 'ron' (meaning 'rum') comes from the English word 'rum', which refers to the alcoholic spirit made from sugarcane. The English word 'rum' itself originated from 'rumbullion', an older English term that meant 'uproar' or 'tumult'. This connection might have emerged from the boisterous behavior associated with drinking the spirit, though the exact reason for this semantic development is debated by etymologists.

There aren't any simpler or more common Spanish words that share the same etymology as 'ron', as it was borrowed directly from English without spawning other related terms in Spanish.

The English word 'rum' is directly related to the Spanish 'ron', as Spanish borrowed the word from English. English speakers can easily remember the Spanish word by noting that it's essentially the same word with just a slight modification - the final 'm' becomes an 'n' in Spanish. This kind of consonant change is common when words are borrowed between languages.