A'dder. n.s. [Æꞇꞇꞃ, Æꞇꞇoꞃ, Naꝺꝺꞃ, as it seems from ıꞇꞇꞃ, Sax. poison.] A serpent, a viper, a poisonous reptile; perhaps of any species. In common language, adders and snakes are not the same.
Or is the adder better than the eel,
Because his painted skin contents the eye. Shak. As you like it.
An adder did it; for, with doubler tongue
Than thine, thou serpent, never adder stung. Shakespeare's Midsum. Night's Dream.
The adder teaches us where to strike, by her curious and fearful defending of her head. Taylor of living holy.