In a thing: inherent beneficial power or efficacy; spec. healing power, health-giving properties. Cf. herb-grace, n. Obsolete.

As a count noun: a specific power or quality. A medicinal property of a plant, liquid, or other substance; a property which affects the body in a…

Of things: A power or capacity; an active quality, efficient property or virtue. Obsolete.

Peculiar power resident in a thing to produce special effects; virtue, efficacy.

A habit; a power or faculty. Obsolete. rare.

figurative. Attractive quality.

Power: also, plural powers, properties. Obsolete.