Webster's Revised Unabridged Dictionary · 1913

Virtue

Virtue (?; 135) , noun

[Old English vertu, French vertu, Latin virtus strength, courage, excellence, virtue, from vir a man. See Virile, and compare Virtu.]

1.
Manly strength or courage; bravery; daring; spirit; valor. [Obsolete] — Shakespeare
Built too strong For force or virtue ever to expugn. — Chapman
2.
Active quality or power; capacity or power adequate to the production of a given effect; energy; strength; potency; efficacy; as, the virtue of a medicine.
Jesus, immediately knowing in himself that virtue had gone out of him, turned him about. — Mark v. 30
A man was driven to depend for his security against misunderstanding, upon the pure virtue of his syntax. — De Quincey
The virtue of his midnight agony. — Keble
3.
Energy or influence operating without contact of the material or sensible substance.
She moves the body which she doth possess, Yet no part toucheth, but by virtue's touch. — Sir. J. Davies
4.
Excellence; value; merit; meritoriousness; worth.
I made virtue of necessity. — Chaucer
In the Greek poets,... the economy of poems is better observed than in Terence, who thought the sole grace and virtue of their fable the sticking in of sentences. — B. Jonson
5.
Specifically, moral excellence; integrity of character; purity of soul; performance of duty.
Virtue only makes our bliss below. — Pope
If there's Power above us, And that there is all nature cries aloud Through all her works, he must delight in virtue. — Addison
6.
A particular moral excellence; as, the virtue of temperance, of charity, etc.
The very virtue of compassion. — Shakespeare
Remember all his virtues. — Addison
7.
Specifically: Chastity; purity; especially, the chastity of women; virginity.
H. I believe the girl has virtue. M. And if she has, I should be the last man in the world to attempt to corrupt it. — Goldsmith
8.
One of the orders of the celestial hierarchy.
Thrones, dominations, princedoms, virtues, powers. — Milton
Collocations (3)
Cardinal virtues , See under Cardinal, a.
In virtue of or By virtue of , through the force of; by authority of. He used to travel through Greece by virtue of this fable, which procured him reception in all the towns. — Addison This they shall attain, partly in virtue of the promise made by God, and partly in virtue of piety. — Atterbury
Theological virtues , the three virtues, faith, hope, and charity. See 1 Cor. xiii. 13.