'arborway' originates from Modern English, specifically the combination of the Latin word 'arbor' (meaning 'tree') and the Old English word 'weg'/'way' (meaning 'path' or 'road').

'arbor' comes from Latin 'arbor' (which entered English via Medieval Latin), and 'way' evolved from Old English 'weg'; these elements were combined in Modern English to form the compound 'arborway' used as a name for a tree-lined way.

Initially, 'arbor' meant 'tree' and 'way' meant 'path' or 'road'; combined they described 'a tree-lined way' and later came to be used as a proper name for a specific roadway.