שׁבר sheber — “fragment, crumb, hence, grain.” בר bar — “pure,” “winnowed,” hence, “corn” (grain).

ש…

We are twelve brethren, sons of our father
All brethren by the father's side, though not by the mother's, and by one…

This is the report Jacob's sons made to their father. It troubled the good man. Even the bundles of money Joseph returned to his father in kindness…