[Blogger]

I did better than appeal to Thayers, I supplied the link where I was reading it. Section II, 22 lines down under a. refers specifically to the verse in question. Quote:" b. with the gen. of the neut. rel. pron. ou or otou (which this text has by the way - ou) gets the force of a conjuction, until, till (the time when); a. ews ou (first in Hdt. 2, 143; but after that only in later auth., as Plut. et al. [W. 296 (278) note; B. 230 sq. (199)]): foll. by the indic., Mt. 1.25 [WH br. ou]; xiii.22; Lk xiii......"

From Thayer's Lexicon (Hel0) http://www.blueletterbible.org/cgi-bin/words.pl?book=Mat&chapter=1&verse=25&strongs=2193&page=1&flag_full=1

[adiaireton8]

Notice that Thayers does not say that this word means only 'up to but not continuing past'. In fact, there are many places where it clearly doesn't mean 'up to but not continuing past'.

-A8