the.com/rooting

means Gaining privileged administrative access to a device's operating system—especially Android phones—so you can override the restrictions the manufacturer baked in.

from Straight from the computing sense of 'root': on Unix and Linux systems, the all-powerful superuser account is named 'root,' a metaphor borrowed from the bottom of a tree where everything originates. To 'root' a device is to seize that root account—becoming the master of the machine. The tree-root word itself is ancient Germanic, related to Old Norse 'rot' and a distant cousin of Latin 'radix' (source of 'radish' and 'radical').