-ed \-ed\
   The termination of the past participle of regular, or weak,
   verbs; also, of analogous participial adjectives from nouns;
   as, pigmented; talented.
   [1913 Webster]

ED
       End Delimiter (FDDI, Token Ring)
       

ED
       Enhanced Density
       

Ed
   witness, a word not found in the original Hebrew, nor in the
   LXX. and Vulgate, but added by the translators in the Authorized
   Version, also in the Revised Version, of Josh. 22:34. The words
   are literally rendered: "And the children of Reuben and the
   children of Gad named the altar. It is a witness between us that
   Jehovah is God." This great altar stood probably on the east
   side of the Jordan, in the land of Gilead, "over against the
   land of Canaan." After the division of the Promised Land, the
   tribes of Reuben and Gad and the half-tribe of Manasseh, on
   returning to their own settlements on the east of Jordan (Josh.
   22:1-6), erected a great altar, which they affirmed, in answer
   to the challenge of the other tribes, was not for sacrifice, but
   only as a witness ('Ed) or testimony to future generations that
   they still retained the same interest in the nation as the other
   tribes.
   

Ed, witness