a shelter in a garden for people to sit under, made by growing climbing plants over a frame (花園、院子中由藤蔓在架子上攀緣而成的)棚架,涼棚 Word OriginMiddle English (also denoting a lawn or flower bed): from Old French erbier, from erbe ‘grass, herb’, from Latin herba. The phonetic change to ar- (common in words having er- before a consonant) was assisted by association with Latin arbor ‘tree’.