To clean by washing.

And say, Thus saith the Lord GOD unto Jerusalem; Thy birth and thy nativity is of the land of Canaan; thy father was an Amorite, and thy mother an Hittite. And as for thy nativity, in the day thou wast born thy navel was not cut, neither wast thou washed in water to SUPPLE thee; thou wast not salted at all, nor swaddled at all. ( Ezekiel 16:3-4 )