FromLatincuprum.
Cu
This symbol is often deemedhumorous in Portuguese since it's homographic withcu.
Cu (lower casecu)
Borrowed fromHokkien朱(Chu) andHakka朱(Chû)
FromHokkien邱/丘 (Khu), viaSpanishCu.Doublet ofCoo andKhoo.
Cu (Baybayin spellingᜃᜓ)