watercourse, stream (properly conduit), as irrigating
Strong's H2988יָבָל: a stream KJV:(water-) course, stream.
Meanings: Brown-Driver-Briggs (1906) and Strong's Hebrew Dictionary (1890), public domain, via the Open Scriptures Hebrew Bible Project (CC BY 4.0). TWOT numbers for reference only.
Root family 835: יָבַלyābal — conduct, bear along; carry away; be borne along, be borne, be led; flow, bring; carry, lead