Abarim Publications' online Biblical Hebrew Dictionary
The root-verb שרג (sarag) means to be intertwined. The verb occurs a mere two times in the Bible, in Job 40:17 and Lamentations 1:14.
This verb's sole derivative is the masculine noun שריג (sarig), meaning tendril or twig. This noun also occurs just twice, in Genesis 40:10 and Joshua 1:7.