vehementemente
From LSJ
οὐκ ἂν λάβοις παρὰ τοῦ μὴ ἔχοντος → you can't take from one who doesn't have, you can't squeeze blood out of a turnip, you can't get blood out of a turnip, you can't get blood from a stone, you can't get blood out of a stone
Spanish > Greek
ἄμοτον, γοργῶς, δεινοπαθέως, δεινοπαθῶς, δεινῶς, ἐναγωνίως, ἐντενίως, ἐντενῶς