Edder

n. [A-S. édor, éder, eodor, edhor, what bounds or defends, a hedge, fence, O. H. Ger. etar, Prov. Eng. eder, hedge.]

1Sense 1. (Husbandry.) Flexible wood worked into the top of hedge-stakes, to bind them together. [Obs.] “Save edder and stake.” Tusser.

2Sense 2. An adder or serpent. [Prov. Eng.] Wright.