habitue comes from French habitué ('frequenter'), past participle of habituer ('to frequent, accustom'), from Latin habituāre, from habitus ('condition'), from habēre ('to have, hold'). The path is chiefly one of transmission: the word passes through the named languages and forms, with each stage preserving part of the modern shape. In present English, the noun sense is "a person who frequents a particular place", so the historical development ends in a clearly identifiable modern dictionary use. The same base also appears in related forms such as habit, habitual, and habituate. Its semantic neighborhood includes regular, frequenter, patron, and denizen, which helps locate the modern sense without adding a separate etymological claim. The named historical forms include Middle French habitué and Latin habēre.