'Dance' came from Old French, probably from Frankish *dintjan (to tremble) — its true origin is debated.
A series of rhythmic steps and movements performed to music; a social gathering at which people dance; a piece of music for dancing to.
From Old French 'dancier' (verb) and 'dance' (noun), of uncertain ultimate origin. The leading theory traces it to Frankish *dintjan (to tremble, to move back and forth), related to Old High German 'dinsen' (to draw, to stretch) and Old Frisian 'dintje' (to tremble). The word displaced the native Old English term 'sealtian' (to dance, to leap), itself related to