τεστάτωρ

From LSJ

οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well

Source

Greek Monolingual

-ορος, ὁ, Μ
μάρτυρας σε διαθήκη.
[ΕΤΥΜΟΛ. < λατ. testator «μάρτυρας σε διαθήκη»].

Spanish

testador