An Etymological Dictionary of the German Language/sprengen
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sprengen, vb., ‘to burst, break open, blow up,’ from MidHG. and OHG. spręngen, ‘to cause to spring,’ is a causative of springen.
sprengen, vb., ‘to burst, break open, blow up,’ from MidHG. and OHG. spręngen, ‘to cause to spring,’ is a causative of springen.