Some, however, read πέπτωκαν have fallen. So Rev.
Of the wine (ἐκ τοῦ οἴνου)
Thus if we read have drunk. If we adopt have fallen, ἐκ is instrumental, by. So Rev.
Of the wrath
The wine of fornication has turned to wrath against herself.
Merchants (ἔμποροι)
The word originally means one on a journey by sea or land, especially for traffic. Hence a merchant as distinguished from κάπηλος a retailer or huckster.
The abundance of her delicacies (τῆς δυνάμεως τοῦ στρήνους αὐτῆς)
Lit., as Rev., the power of her luxury. Στρῆνος is akin to στερεός firm, hard, stubborn (see on steadfast, 1Pe 5:9). Hence over-strength, luxury, wantonness. Only here in the New Testament. The kindred verb στρηνιάω to live deliciously occurs Rev 18:7, Rev 18:9.