Hittite šakruwe-

From: alexandru_mg3
Message: 63788
Date: 2009-04-12

Hittite
šakruwe- 'soak, water' [is derived by Melchert] < *srakur-ye- < *sragW-wr-

Could somebody indicates which is the PIE root for *sragW- here?

And what cognates we have?

Thanks,
Marius