According to Reference.com, the word "migrate" means to go, move or pass periodically from one place, region or country to another, as in the sentence "the birds migrate south in the winter." The word is often confused with "emigrate" and "immigrate."
Migrate also means to shift from one system of operation or mode to another. In physiology, migrate means to shift from one part of the body to another, such as in embryonic development. The origin of the word migrate dates back to the early 18th century Latin word "migratus." An example sentence using the word migrate is: "In response to drought, animals will simply migrate to areas where there is still sufficient water."