Passify

The distinction between the two voices, active and passive, is easy enough to make. The way you "passify" a verb is to start out with some form of the auxiliary "to be" and follow the auxiliary with the past participle of the verb.

For non-passive systems, however, passivity-based control techniques cannot be used directly. One way of making nonpassive systems amenable to passivity-based control is to render such systems passive, i.e., to passify them[.]

Finally, [the command] passify does not generate version-optimal programs; the notion of version-optimal passive form, which uses the [...]

A passive investor invests in the market portfolio as if he shared the average belief of the investors. [...] Every investor has the choice to “passify” if he discovers himself to be a loser of the zero sum game.