巾子こじ

noun

vertical part of a kanmuri cap

Refers specifically to the upright section of a traditional Japanese court cap (冠). A highly specialized historical clothing term.

See also: 冠

• 冠かんむりの巾こ子じは、位い階かいによって高たかさが異ことなった。

  The height of the kanmuri's vertical part varied according to court rank.