da.mam is used as a plural command calling coastland inhabitants to wail.

The attested use is a direct plural command for the inhabitants of the coastland to wail in Isaiah 23:2.

1. A command addressed to mourners · dominant

   In Isaiah 23:2, the Qal imperative masculine plural form addresses the inhabitants of the coastland; the APB renders the opening command, “Wail,” before naming the merchant of Sidon who crosses the sea.

   Isaiah 23:2

In the Anselm Project Bible: In Isaiah 23:2, the APB presents the verse’s opening command as “Wail.” This reflects the clause as a whole rather than proving a one-to-one rendering.