The term 'Suffixes of Origin' refers to the endings of words that indicate their origin. For example, the suffix '-ese' is often used to denote a language or culture, such as Chinese (Chinese-ese) or Japanese (Japanese-ese). The crossword solution ESES is an example of this type of suffix. It is derived FROM the Latin word 'exes' which means 'FROM'. Therefore, ESES can be used to indicate something originating FROM a particular place or culture.