dấu sóng

Etymology
, from the diacritical mark's resemblance to an ocean wave.

The Middle Vietnamese diacritic was derived from the Portuguese and has since fallen out of use.

Noun

 * 1)  ;  punctuation mark that indicates range
 * 2)   diacritic in Middle Vietnamese that indicates

Usage note
This diacritic is a homoglyph of and, which are also known in English as  based on their appearance.