tenuity相关的词根或词缀是: tenu

There is the least possible moisture in the atmosphere , all being dried up or congealed , and it is of such extreme tenuity and elasticity that it becomes a source of delight .

大气里面一点水分都没有，水蒸气不是干化，就是凝结成冰霜的了；空气十分稀薄而似有弹性，人呼吸其中，自觉心旷神怡。