ὑπερευχαριστέω
From LSJ
Πολλοῖς ὁ Δαίμων, οὐ κατ' εὔνοιαν φέρων, / Μεγάλα δίδωσιν εὐτυχήματ' ... (Euripides) → God brings great good fortune to many, not out of good will,...
English (LSJ)
to be extremely thankful, PTeb. 12.24 (ii B. C.).
Greek (Liddell-Scott)
ὑπερευχαριστέω: ὡς καὶ νῦν, εὐχαριστῶ παραπολύ, τινι Εὐσέβ. ΙΙ, 1509C.