Origin: Latin suffix -al
Presidential has 3 different meanings across 1 category:
Pertaining to a president or presidency.
"The presidential campaign kicked off last week with rallies across the country."
In plain English: Something described as presidential relates to the president of a country or has the qualities expected of one.
"The presidential election is coming up next month."
Usage: Use "presidential" to describe anything relating to a president, such as presidential elections or a presidential style. Avoid using it to mean merely impressive or magnificent, which are incorrect definitions for this term.
The word presidential comes from combining the noun president with the suffix -ial to form an adjective describing things related to a president or presidency. It entered English as a straightforward grammatical construction once the root word was established in the language.