IshExod 28:25 :ܕܣܘܦ ܘܕܣܘܡܩܐ܃ ܡܬܩܪܐ ܗ݀ܘ ܝܡܐ‏ : that sea is called "Suf" and "the Red"
See the entire entry for swp#2 n.m. Suf; a type of reed