vir·tue 
(vûr

ch

)
KEY NOUN:
- Moral excellence and righteousness; goodness.
- An example or kind of moral excellence: the virtue of patience.
- Chastity, especially in a woman.
- A particularly efficacious, good, or beneficial quality; advantage: a plan with the virtue of being practical.
- Effective force or power: believed in the virtue of prayer.
- virtues Christianity The fifth of the nine orders of angels in medieval angelology.
- Obsolete Manly courage; valor.
IDIOM: by/in virtue of- On the grounds or basis of; by reason of: well-off by virtue of a large inheritance.
ETYMOLOGY:Middle English
vertu, from Old French, from Latin
virt
s,
manliness, excellence, goodness, from
vir,
man; see
w
-ro- in Indo-European roots