Effective as a cause, productive of (an effect).

With of. That nurtures or gives rise to something. Obsolete. rare.

That is concerned in the production of (an event or condition, or (rare) a material product). Obsolete.

Productive of, giving rise to. Obsolete.

That causes or brings about; that results in, that is the cause of.

Providing the cause or occasion of, productive of. Now rare.

Productive of something else.

That is a cause of, productive, fruitful of.