Διαθήκη

It is used in two meanings. One applies to the disposition made by those who are dying and has the force of a command. The other [kind of] covenant [is] the promise made by God to Abraham and the other forefathers, to raise up out of their seed our Lord and God Jesus Christ.¹
And in Aristophanes diaqh/kh [means] an agreement. "The agreement that they made with me."² Also [sc. attested is the related verb] diati/qemai, meaning "I make an agreement."³