v. t.
It is sundered from the main land by a sandy plain. Carew. [ 1913 Webster ]
v. i. To part; to separate. [ R. ] Shak. [ 1913 Webster ]
n. [ See Sunder, v. t., and cf. Asunder. ] A separation into parts; a division or severance. [ 1913 Webster ]
In sunder,
v. t. To expose to the sun and wind. [ Prov. Eng. ] Halliwell. [ 1913 Webster ]