イ, コク, くにがまえ
box or enclosure radical (no. 31), box
JLPT0 G13 S0 F5000
A depiction of a circular *enclosure* such as a city wall → *specific/particular place*. Although the present style of the character squares the edges, ancient forms are rounded, and the association with circularity is evidenced by cognate characters with the element such as 韋, 圍 and 囮.
[Full Kanji Etymology List]