_Hoppesteris_.--The "shippis _hoppesteris_," in Chaucer's _Knight's
Tale_, 2019., is explained by Tyrwhitt to mean _dancing_, and that in
the feminine--a very odd epithet. He tells us that the corresponding
epithet in Boccaccio is _bellatrici_. I have no doubt that Chaucer
mistook it for _ballatrici_.