[化] 珩磨

Hone \Hone\, v. t. [imp. & p. p. {Honed} (h[=o]nd); p. pr. & vb.
n. {Honing}.]
1. To sharpen on, or with, a hone; to rub on a hone in order
to sharpen; as, to hone a razor.

2. to render more precise or more effective; as, to hone
one's skills.
[PJC]