About
The character "塄" refers to an earthen ridge or bank, and its structure combines the semantic component "土" for earth with the phonetic component "楞". Etymologically, it derives from the character "棱", meaning edge or corner, by substituting the "木" radical with "土" to specify a terrestrial feature. This modification led to a specialized meaning focused on raised soil boundaries, distinguishing it from the more general sense of "棱".