About
The character "龌" originates from its traditional form "齷", which combines the semantic component "齒" meaning tooth with the phonetic component "屋" meaning house. This structure initially implied a literal sense of dental irregularity or crowding, but its meaning broadened to convey metaphorical associations with dirtiness and sordidness when used in the compound "龌龊". Over time, the character's independent use declined, and it became entrenched in this bimorphemic word, with the simplified form altering the semantic element from "齒" to "齿" while keeping the phonetic element "屋" intact.