from
The Collaborative International Dictionary of English v.0.48
Sunder \Sun"der\, v. t. [imp. & p. p. {Sundered}; p. pr. & vb.
n. {Sundering}.] [OE. sundren, AS. sundrain (in [=a]sundrain,
gesundrain), from sundor asunder, separately, apart; akin to
D. zonder, prep., without, G. sonder separate, as prep.,
without, sondern but, OHG. suntar separately, Icel. sundr
asunder, Sw. & Dan. s["o]nder, Goth. sundr[=o] alone,
separately.]
To disunite in almost any manner, either by rending, cutting,
or breaking; to part; to put or keep apart; to separate; to
divide; to sever; as, to sunder a rope; to sunder a limb; to
sunder friends.
[1913 Webster]
It is sundered from the main land by a sandy plain.
--Carew.
[1913 Webster]