The beloved woman in Song of Solomon is called O Shulammite by the 'Others.' (Song of Solomon 6:13)
Etymology
Maybe it's a female form of Solomon or maybe she's from Shulam, synonymous with Shunem (she's called a Sunamite in the Septuagint and Eusebius referred to Shunem as Shulem), modern-day Sulam.
(https://biblereadingarcheology.com/2016/12/08/where-was-shulam-home-of-the-shulammite/)
Physical Description
From her perspective, she is dark but lovely.
Her eyes are doves, (Song of Solomon 1:15). Her cheeks are lovely with ornaments, her neck with strings of jewels. (Song of Solomon 1:9-10)