Webster's Revised Unabridged Dictionary · 1913

Impotence

Impotence , noun

[Latin impotenia inability, poverty, lack of moderation. See Impotent.]

1.
The quality or condition of being impotent; lack of strength or power, animal, intellectual, or moral; weakness; feebleness; inability; imbecility.
Some were poor by impotency of nature; as young fatherless children, old decrepit persons, idiots, and cripples. — Hayward
O, impotence of mind in body strong! — Milton
2.
Lack of self-restraint or self-control. [Rare] — Milton
3.
(Law & Medicine) Lack of procreative power; inability to copulate, or beget children; also, sometimes, sterility; barrenness;
(Law & Medicine) the inability to achieve or sustain a penile erection; erectile dysfunction.

Also: Impotency