[ 'dɪskətɛk ]
■ noun fuller form of disco (in sense 1).
Origin
1950s: from Fr. discothèque , orig. 'record library', on the pattern of bibliothèque 'library'.
DISCOTHEQUE
Meaning of DISCOTHEQUE in English
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004