The word itself is derived from the Latin word vir meaning simply "man" (in a gender specific sense). The German for "virility" is Manneskraft — the strength of a man.
Historically, masculine attributes such as beard growth have been seen as signs of virility and leadership (for example in ancient Egypt and Rome).
As a term for positive reference, virility does not accord with feminisms that put forward various deconstructions of masculinity. According to these points of view, virility is redefined as an outdated abstraction, impacting negatively on women via unwanted sexual activity, and unwanted pregnancies.