Matthew 26:28 For this is my blood of the new testament, which is shed for many for the remission of sins.
[G2537] (kainos/kahee-nos') of uncertain affinity;
new (especially in freshness; while 3501 is properly
so with respect to age:--new. see G3501
[G1242] (diatheke/dee-ath-ay'-kay) from 1303;
properly, a disposition, i.e. (specially) a contract
(especially a devisory will):--covenant, testament.
see G1303
Webster's Dictionary Access 5/11/25
Testament: a person's will, especially the part relating to personal property.