词根词缀：tang-, tact-, tast-, ting-, -tig -tag, -teg-

【来源及含义】Latin: touch, feel; try; reach; handle; evaluate, estimate

【同源单词】anticontagious, atactilia, attain, attainable, attainder, attainment

词根词缀：thigmo-, thigm-, thixo-

【来源及含义】Greek: touch, a touching

【同源单词】thigmaesthesia, thigmocyte, thigmokinesis, thigmokinetic, thigmomorphic, thigmomorphosis