(same as 厎 砥) to apply knowledge to final causes; to extend knowledge to the utmost, equally; average, smooth
㕄【子集下】【厂部】 康熙筆画:6画,部外筆画:4画
《字彙補》之是切,音智。致也,均也,平也,聲也。《海篇》同厎。