[1765–75; un-2 + tether]This word is first recorded in the period 1765–75. Other words that entered Englishat around the same time include: backwash, bilateral, guidance, mocha, statementun- is a prefix freely used in English to form verbs expressing a reversal of some actionor state, or removal, deprivation, release, etc. (unbend; uncork; unfasten; etc.), or to intensify the force of a verb already having such a meaning (unloose)
Examples of 'untether' in a sentence
untether
Fielding chose this moment to untether a two-fisted topspin drive.