U+2E91 "⺑" CJK Radical Lame Four Unicode Character

U+2E91 "⺑" CJK Radical Lame Four is a rare and specialized glyph used in the set of Chinese character radicals, specifically representing the radical known as "lame four" or "sick four." This radical is derived from the traditional Kangxi radical for "sickness" or "illness" (疒), and it appears as a variant form of that component within certain historical or calligraphic contexts. As part of the CJK Radicals Supplement block, "⺑" is not a standalone character for regular text but a semantic building block for dictionary indexing and composition of complex Chinese characters, often found in scholarly works or specialized fonts that document alternative radical shapes.