休息-休-单人旁=人+木,人靠着树为了休息,a man stand aganist a tree for what for resting.
so 休means rest,休息
like french,english nouns have tion or something others ,same sound ,caution,station
霞xia4,假jia3,瑕xia3 these all have “a” sound,and these word all have 叚,see the pattern?
so mandarin is not so hard to learn,in fact ,it just like picture.