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στυγερῶς

From LSJ

Sunt verba voces quibus hunc lenire dolorem possis, magnam morbi deponere partem → Words will avail the wretched mind to ease and much abate the dismal black disease.

Horace, Epistles 1.34

French (Bailly abrégé)

adv.
horriblement.
Étymologie: στυγερός.

Russian (Dvoretsky)

στῠγερῶς:
1 на беду, к несчастью Hom.;
2 злобно, сердито (ἀποπέμπειν τινά Hom.).