An Etymological Dictionary of the German Language/üppig

by Friedrich Kluge

üppig, adj., ‘luxurious, voluptuous, sumptuous,’ from MidHG. üppic (g), OHG. uppîg, ‘superfluous, useless, invalid, frivolous, arrogant.’ For the connection of this specifically HG. word with Goth. ufjô, f., ‘superfluity,’ and OHG. uppi, ‘malicious,’ as well as with the cognates of übel and über, see übel.