[mass noun](Roman Law)the right to enjoy the use and advantages of another's property short of the destruction or waste of its substance (罗马律)使用收益权,用益权(指使用他人财产并享收益而不损害该财产的权利)
派生 usufructuary ( & ) adjective& noun 语源
early 17th cent.: from medieval Latin usufructus, from Latin usus (et) fructus 'use (and) enjoyment', from usus 'a use' + fructus 'fruit'