variar
/baˈɾjaɾ/ · B2 · verb
to alter, vary, change
🔀 variar sounds like 'vary-are': you ARE varying it, so it changes
Spanish variar comes from Latin variare, the same root as English vary, variety and variable. Link the 'var-' start to 'vary': if a thing is variable, someone can variar it. The final -ar is the standard Spanish verb ending.