|Origin:||leitmotiv, from leiten 'to lead' + motiv 'motive' (from French motif)|
leit‧mo‧tif , leitmotiv [countable]
a musical phrase that is repeated several times during a long musical work and represents a particular character or idea
something that is seen or heard very many times and so becomes a typical feature of a place, time, or person:
Her designs in clothing became a leitmotif of the 1970s.