lobby
Pronunciation: /ˈlɒbi/
noun ( plural lobbies)
- 1a room providing a space out of which one or more other rooms or corridors lead, typically one near the entrance of a public building: they went into the hotel lobby
verb ( lobbies, lobbying, lobbied)

Origin:
mid 16th century (in the sense 'monastic cloister'): from medieval Latin lobia, lobium 'covered walk, portico'. The verb sense (originally US) derives from the practice of frequenting the lobby of a house of legislature to influence its members into supporting a cause