In the 60's, the word 'discotheque' (from the French) was used for a place to dance.
In the 70's, it was shortened to 'disco', and the word was used for 'disco' music (music for dancing).
But people got sick of disco music, so today we don't say 'disco music'; we say 'dance music'.
The places are still called 'discos' though.
Laura Branigan was a popular singer in the 80s. Her songs were often played in discos.
