\Teth"er\, n. [Formerly tedder, OE. tedir; akin to LG.
tider, tier, Icel. tj[=o]?r, Dan. t["o]ir. [root]64.]
A long rope or chain by which an animal is fastened, as to a
stake, so that it can range or feed only within certain
limits.

\Teth"er\, v. t. [imp. & p. p. {Tethered}; p. pr. & vb.
n. {Tethering}.]
To confine, as an animal, with a long rope or chain, as for
feeding within certain limits.
      And by a slender cord was tethered to a stone.
                                               --Wordsworth.