There are various synonyms for the word "most arose" which can be used interchangeably in different contexts. Some of the common synonyms include "majority," "predominant," "dominant," "chief," "principal," "paramount," and "leading." All these synonyms imply that a particular thing or idea holds the highest degree of importance or significance. For instance, the majority of the population in a given region could imply that most of the people in that area belong to a particular ethnicity or speak a particular language. Similarly, the dominant or principal feature of a place could imply that it is the most noticeable or important aspect of that place. By using these synonyms, writers and speakers can add more expression and variety to their language and convey their message more effectively.