BT Ber 12a(25) :פתח בדשיכר׳ וסיים בדחמרא‏ : he began with the instance of beer and finished with the instance of wine
See the entire entry for bḏī > baḏ conj. inasmuch as

BT Ber 12a(25) :פתח בדשיכר׳ וסיים בדחמרא‏ : he began with the (blessing for) beer and finished with that for wine
See the entire entry for syym#3 vb. D to complete