柘硯

ink slabs from a place in Shandong

zhè = zh + e4

a thorny tree / sugarcane / Cudrania triloba / three-bristle cudrania (Cudrania tricuspidata) / Chinese mulberry (Cudrania)

yàn = y + an4

ink-stone

柘硯 is not used as a component in another word.

柘硯 currently does not appear in any sentence.