The term 'NATIVE's Suffix' is a crossword puzzle clue that can be solved with two three-letter answers: IAN and ITE. IAN is a suffix derived from the Latin word 'ianus, ' meaning 'belonging to, ' and is commonly used to denote a person's nationality or ethnicity. For example, the suffix '-ian' is often added to the end of a country's name to indicate a person who is NATIVE to that country, such as Canadian or Brazilian. ITE is another suffix derived from the Latin word 'ites, ' meaning 'belonging to, ' and is commonly used to denote a person's occupation or profession. For example, the suffix '-ite' is often added to the end of a job title to indicate a person who is employed in that field, such as journalist or scientist.