The spelling of the word "clavises" is derived from its Latin root "clavis," meaning key. The correct pronunciation is [kləˈvɪsiz], with the stress on the second syllable. The final "-es" ending indicates that it is a plural form, meaning more than one key. This word is typically used in the context of music, referring to a group of keys on a keyboard instrument such as a piano or organ. Remember to ensure proper spelling and pronunciation when discussing musical terminology in order to effectively communicate with other musicians.