discotheque
Concise Oxford English Dictionary © 2008 Oxford University Press:
discotheque /ˈdɪskətɛk/
▶noun fuller form of disco (sense 1).
– origin 1950s: from Fr. discothèque, orig. ‘record library’, on the pattern of bibliothèque ‘library’.
'discotheque' also found in these Oxford entries:

