garden-variety

The compound "garden-variety" originated in American English in the early 20th century, specifically within the realm of horticulture and plant catalogues. It literally described a plant species or cultivar that was commonly available from general nurseries, as opposed to rare or specialized hybrids. Through metaphorical extension, the term's logic evolved from denoting the "standard type found in any ordinary garden" to describing anything commonplace, typical, or unexceptional in any field, effectively contrasting the mundane with the exotic or premium.

Structure: garden (garden) + variety (type) garden: From Old North French gardin (enclosure), of Germanic origin. Functions as a noun used attributively to modify 'variety'. variety: From Latin varietas (difference, diversity), from varius (varied, spotted). Functions as the head noun in the compound.