Teth"er (?), n. [Formerly tedder, OE. tedir; akin to LG. tider, tier, Icel. tjor, Dan. toir. 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.
© Webster 1913.
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.
© Webster 1913.