PJ Gen26:20 :והות צבו מן שמיא ויבשת ובכן אהדרו יתה ליצחק‏ : there was a heavenly wish and it dried up, so then they returned it to Isaac
See the entire entry for bkn adv. then

PJ Gen26:20 :ובכן אהדרו יתה ליצחק‏ : so then they returned it to Isaac
See the entire entry for hdr vb. to return, go around