1570s, "the putting of a border," verbal noun from edge (v.). Meaning "a border, that which is added to form an edge" is from 1660s; that of "the trimming of lawn edges" is from 1858.
Entries linking to edging
edge v.
late 13c., "to give an edge to" (implied in past participle egged), from edge (n.). Intransitive meaning "to move edgeways (with the edge toward the spectator), advance slowly" is from 1620s, originally nautical. Meaning "to defeat by a narrow margin" is from 1953. The meaning "urge on, incite" (16c.) often must be a mistake for egg (v.). Related: Edger.