(US, slang) One who roots for, or applauds, something.

One who, or that which, roots; one that tears up by the roots. / One who roots or rummages through something.

plural of rooter

(idiomatic, Southern US) From head to toe. / (idiomatic, Southern US) To waste very little; to use all available resources.

plural of rootery

A pile of roots, set with plants, mosses, etc., and used as a garden decoration.