enclitic

noun

1. 后附着语素，非重读后接成分（如 can't 中的 n't）
   a word pronounced with very little emphasis, so that it becomes part of the word before, for example ‘n't’ in ‘can't’

1. Tonal Patterns in Classical Chinese Poetry 、 Stress and Confirmation of Enclitic Weakened Stress in a Rhythm Unit in the Construction of Metre in Chinese
   平仄律、轻重音和汉语节律结构中弱重位的确认