Seeing that DARK BROWN, DEEP MAROON color of coagulated blood mixed with other fluids「dripping from the orifice of one's woody」will cause FEARFUL SHUDDERS AND TREMBLING after learning what sort of death awaits the sufferer back in the days before penicillin.
　「Dripping orifice with screwing emissions, woody」: one's initial experiences with sex, other than when alone, are often accompanied by some shuddering. Humans of both sexes experiencing sex with another human for the first few times often tremble uncontrollably, and not from cold.
　Today, this glyph is used to depict Castanea sativa or sweet chestnuts, and not horse chestnuts that are not generally eaten any longer. In Chinese, this glyph fundamentally means TREMBLING, SHUDDERING, SHIVERING from fear, due to the methods needed for harvesting…sweet chestnuts do not always fall from the tree when ripe, so each tree needs to be forcibly SHAKEN in order to loosen the nuts until they fall, normally by someone up in the tree SHAKING the branches who may also fall along with the nuts.
　Formerly though, the top element as「sticky fluid dripping down」and「something of value, essential」over「twisting emissions」in traditional fonts, and「plant, tree」in modern fonts represent horse chestnuts that are covered with sticky fluid:「Horse Chestnut Bud: The 'shine' on the bud is the sticky sap」
　　[　https://herbsociety.org.uk/kh-hedgerow-to-kitchen-horse-chestnut.htm 2012-08-04, with images　]　
　Glyph depicts「plant that was essential」in order to remain alive throughout the long winters: the HORSE CHESTNUT, high in vitamin C that prevents scurvy. Horse chestnuts:「Aesculus seeds were traditionally eaten, after leaching, by the Jōmon people of Japan over about 4 millennia, until 300AD. Aesculus species are woody plants from 4 to 36m tall (depending on species), and have stout shoots with resinous, often sticky, buds…」
　　[　https://en.wikipedia.org/wiki/Aesculus 2012-08-03　]　

Modern definitions (that generally disregard history) …excluding politically incorrect concepts and other meanings deemed offensive today; may list only pigeonholed definitions, euphemisms, or meaningless mnemonics)
Chinese: afraid; trembling; chestnut
Japanese: Japanese chestnut
Unihan extended: chestnut tree, chestnuts
EDRDG: chestnut

Used within names (nanori)
くる　･　りっ