youngest sibling at the same level has more than necessarydistribute the keys between this node and the neighbor repair the keys in the level above to represent that these nodes now have different "split pointbetween themthis involves simply changing key in the levels abovewithout deletion or insertion if the node has too few keys to satisfy the invariantand the next oldest or next youngest sibling is at the minimum for the invariantthen merge the node with its siblingif the node is non-leafwe will need to incorporate the "split keyfrom the parent into our merging in either casewe will need to repeat the removal algorithm on the parent node to remove the "split keythat previously separated these merged nodes -unless the parent is the root and we are removing the final key from the rootin which case the merged node becomes the new root (and the tree has become one level shorter than beforeinitialdelete