摹 is a bound form (不自由语素) that cannot stand alone as a full verb. It appears in compounds such as 临摹 ('to copy by tracing'), 摹仿 ('to imitate'), and 描摹 ('to trace a likeness'). Its core meaning is to reproduce an original closely, often by placing thin paper over a model and following its outlines — a technique common in Chinese calligraphy and drawing practice.