pre- + boom
preboom (not comparable)
- (economics) Before a boom
2009, January 17, “Andrew Jacobs”, in A County in China Sees Its Fortunes in Tea Leaves Until a Bubble Bursts:
- From 1999 to 2007, the price of Pu’er, a fermented brew invented by Tang Dynasty traders, increased tenfold […] before tumbling far below its preboom levels.