shu.ach is used as the proper name of a person listed among Keturah's sons.

The supplied occurrences use the term as a proper name within lists of Keturah's sons, including the same sequence in Genesis 25:2 and 1 Chronicles 1:32.

1. Personal name in Keturah's family list · dominant

   Both occurrences are tagged Noun · Proper and occur in a list of sons. In Genesis 25:2 the APB renders the list as “She bore to him Zimran, Jokshan, Medan, Midian, Ishbak, and Shuah”; in 1 Chronicles 1:32 it again names Shuah among the sons Keturah bore.

   Genesis 25:21 Chronicles 1:32

In the Anselm Project Bible: The APB presents the term as “Shuah” in both family lists. It confirms the list context rather than supplying a separate lexical rendering.