TETHER is a playable word

tether Scrabble® Dictionary

verb
tethered, tethering, tethers
to fasten to a fixed object with a rope
26 Playable Words can be made from "TETHER"
   2-Letter Words (6 found)
   3-Letter Words (9 found)
   4-Letter Words (6 found)
   5-Letter Words (4 found)
   6-Letter Words (1 found)