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βρι

From LSJ

Ῥίζα γὰρ πάντων τῶν κακῶν ἐστιν ἡ φιλαργυρίαRoot of all the evils is the love of money (Radix omnium malorum est cupiditas)

The Bible, 1 Timothy, 6:10

Russian (Dvoretsky)

βρῐ: усилит. приставка со знач. весьма (напр., βριήπυος).