affix

中文： 词缀、附加物

1. A bound morpheme added to a word’s stem, such as a prefix or suffix.
2. That which is affixed; an appendage.
3. The complex number a+bi associated with the point in the Gauss plane with coordinates (a,b).
4. Any small feature, as a figure, a flower, or the like, added for ornament to a vessel or other utensil, to an architectural feature.

复数 affixes