yin2
limit; border; river bank

strokes 9
radical
strokes after radical 6
无垠 無垠 wu2 yin2
boundless; vast

姚雪垠 姚雪垠 yao2 xue3 yin2
Yao Xueyin (1910-1999), PRC novelist, author of historical novel Li Zicheng 李自成

一望无垠 一望無垠 yi1 wang4 wu2 yin2
to stretch as far as the eye can see (idiom)