Syr. cs. ܫܸܒ݁ܲܠ‏; Mand. šumbulta, šimbilta; plural in -īn; in Syriac also masculine, probably as a back-formation from the plural form. In some texts one finds the form ܫܒܠܐ‏ misunderstood as a singular based on the construct. CPA also ܫܘܒܝܠ;

For "stream" : see also s.v. šwblh.

The LJLA form תובל at PsJon 41:5,6, 23, 24 is a scribal "aramaizing" hypercorrection; note the correct form at v. 47; yet another example of the "Kaufman" effect (see e.g. http://www.sbl-site.org/meetings/Congresses_Abstracts.aspx?MeetingId=4).