The spelling of the word "most legislational" follows standard English pronunciation rules. "Most" is pronounced as /moʊst/ with the long "o" sound, while "legislational" is pronounced as /ˌlɛdʒələˈʃənəl/ with the stress on the second syllable. The word "legislational" refers to the process of making laws or the actions of a legislature. Overall, the spelling of "most legislational" accurately represents the pronunciation of the word and its meaning.
The word most legislational is a derived form of the noun legislation combined with the superlative suffix -al and the intensifier most. Legislation itself comes from the Latin term legis latio, which means act of proposing a law or enactment of a law. It is composed of lex (law) and latio (act of making). The superlative suffix -al is added to turn the noun legislation into an adjective, meaning pertaining to legislation. The intensifier most is used to further emphasize the quality or degree of the adjective, making it most legislational.