Twmpath
Twmpath is a Welsh word literally meaning a hump or tump, once applied to the mound or village green upon which the musicians sat and played for the community to dance.
Twmpath dawns were organised by Urdd Gobaith Cymru in the late 1950s and 1960s, a form of barn dance, for the entertainment of young people, mainly from rural areas. These events remained popular until the rise of discos in the 1970s. Twmpath is used today to mean a Welsh version of the barn dance or céilidh.
The same word is also used to refer to a speed bump.