-Stein: from the Norse ’sten’- a stone,
-Grout: from the Old Norse “grautr”, or the Old English pre 7th Century “Grut”, an early nickname for a person considered by neighbors to be a bit wild, rough around the edges, and someone not to be associated with.
As far as the family name, there are not many of us left. Killed off by plague, pestilence, Huns and holocaust, geneological research reveals:
The earliest recording of the name includes Steingrautr and Stengrut of Yorkshire (personal names only) in the 1086 Domesday Book.
Banished from Las Vegas by way of entrance into The Black Book in 1991, 34 year old junkie Max Steingrout needed a fix.