Which preposition to use with tergo

for Occurrences 1%

It is substituting a vis a tergo for the evolution of living force.

of Occurrences 1%

Many sober minds make coffee and tea the pis a tergo of their daily intellectual labor; just as a few of greater imagination or genius seek in opium the spur of their ephemeral efforts.

through Occurrences 1%

Certainly highly heated solutions forced by an irresistible vis a tergo through rocks of any kind down in the heated zone, would be far more effective leaching agents than cold surface water with feeble solvent power, moved only by gravity, percolating slowly through superficial strata.

Which preposition to use with  tergo