Habitue

A habitue or habitué is one who frequents a particular place, especially a place offering a specific pleasurable activity.

Function: noun

Etymology: French, from past participle of habituer to frequent, from Late Latin habituare to habituate, from Latin habitus
Date: 1818

A month ago the new smoking ban turned thousands of bar-room habitues into reluctant exiles from their usual corner seat.

Related: habit