BT Ket 7b(7) :ליכא בתולתא דבצירא משבעה ליכא אלמנה דבצירא מינה יום אחד‏ : there is no virgin who is less than seven [i.e. has less than seven days of a marriage celebration], and no widow who is less than one day
See the entire entry for bṣīr adj. slight

BT Ket 7b(7) :ליכא בתולתא דבצירא משבעה‏ : there is no virgin who is less than seven [i.e. has less than seven days of a marriage celebration]
See the entire entry for bṯūlā, bṯūltā n.f. virgin