There are 15 words that start with 'migr'.
migrant | migrate | migraine |
migrants | migrated | migrates |
migrator | migraines | migrating |
migration | migrators | migratory |
migrainous | migrations | migrational |
Note: These 15 words that start with 'migr' are found from the USA & Canada version of the tournament Scrabble word list.