ok.
Is the core word a surname: No
How many strokes of the core word in Kangxi dictionary: 1 strokes (the number of strokes of the name)
The meaning of the core word in the name: the central part of the object.
Explanation of the names of the words with cores
The five elements of the word Rui belong to wood, and the five elements of the word Qin belong to wood, pistil and stamen, which means the beauty of girls. Qin is often used to describe the gentle beauty of women in poetry. This name is direct and implicit, but it is clear at a glance that all of them refer to each other.
Extended information
Boys' names with the words
Xin Mi, Xin Fu, Xin He, Xin Gou, Xin Tao
Xin Zhou, Xin Hao, Xin Jiong, Xin Yi, Xin Huo
Xin Yin, Xin Huang, Xin Yun, Xin Xun, Xin Gu
Xin Stable, Xin Gu.