overspeculate

Etymology

From over- + speculate.

overspeculate means to spend too much money in speculation. Lexicurio rates it Sui generis — a strength score of 87 out of 100.

verb

To spend too much money in speculation.“[…] that under our present way of doing business there was a tendency to overspeculate on future advances in value; that such overspeculation always tended to produce a reaction; that there were evidences at the present time of the beginning of such a speculative fever […]”
To speculate excessively.