While I do not have an exhaustive reference set right here with me, here is
Louw-Nida for your consideration...
04926 parqenos ou f or m
(a) virgin (female) 9.39
(b) virgin (male) 9.33
(c) unmarried person 34.77
34.77 parqenos, ou f or m: a person who
has not as yet married (and possibly
implying virginity) - `unmarried person.'
peri de twn parqenwn epitaghn kuriou
ouk ecw `concerning the unmarried, I do
not have a command from the Lord' 1 Cor
7.25. Some scholars interpret parqenos as
referring not only to those who have never
married, but also to widows and widowers
who have not remarried. The meaning of
`unmarried persons who are not necessarily
virgins' is well attested in Greek from
classical times.
And thanks to all who contributed to the hAPTW/ sexual relations question. There
are two references I found in Perseus, namely, Aristot. Pol. 1335b40 and Eur.
Phoen. 946 that directly mention hAPTW with respect to relations among a married
couple. Not that it is limited to that, but that is certainly one of its
applications.
Sincerely,
Wes Williams