CJK Compatibility Ideograph-2F93C

It preserves a Taiwanese source code for round-trip conversion. CNS 11643 — Taiwan's national character coding standard since 1986, expanded from two code planes to seven in 1992 — catalogs this written variant of 𤾸 as T7-537B, on the seventh plane that holds character variants. Unicode treats it as the same ideograph as 𤾸, but giving the CNS entry a code point of its own means text converted between the two standards comes back with exactly the code it started with.

𤾸 is one of 542 ideographs set aside for that one job. The character it encodes is genuinely rare: Taiwan's dictionary of character variants reads 𤾸 as wěi — 'a flower', or blossoms in full flush — and treats it as an old variant of 蘤; the CNS standard simply recorded this particular way of writing it. Historical characters like this live in standards tables rather than everyday writing, and the CNS repertoire still backs the codes Taiwan's household registration relies on for rare characters in names.

Why does 𤾸 turn into 𤾸?

Any normalization pass rewrites it as 𤾸. Normalization is the quiet cleanup systems run to give every character one preferred spelling, and 𤾸's canonical decomposition points at U+24FB8 — so a normalized file always ends up holding 𤾸 instead. Search indexes, databases and form handlers often normalize text on the way in; the 𤾸 code point never comes back. The ideograph itself is unchanged, but a font may now draw the more common variant rather than the form CNS recorded.

When this exact written form must survive — a Taiwanese source that distinguished the variant, say — the sanctioned route is the sequence 𤾸︀: 𤾸 followed by variation selector U+FE00, an invisible code that requests this glyph shape. Unicode defines that pairing for this character, and normalization leaves it untouched. It preserves the glyph, though, not the code point: to round-trip back to T7-537B exactly, 𤾸 itself is still the code.