Tetterton rhymes with:
betterton, betterton, catterton, chatterton, chesterton, winterton, agerton, alderton, allerton, alverton, anderton, atherton, beaverton, betterton, bickerton, brotherton, caperton, catterton, chatterton, chesterton, cullerton, edgerton, egerton, everton, fullerton, helmsburton, lamberton, leaverton, lumberton, netherton, overton, palmerton, pemberton, pinkerton, somerton, stellarton, warburton, winterton, woolverton, yelverton
Tetterton sounds like:
tarrytown, tartan, teradyne, thirteen, thorton, threaten, tradition, trautman, trautmann, trautwein, tretinoin, trettin, tritium, triton, trodden, trotman, trotten, troutman, troutwine, turton