辺上 is read as へんじょう (henjou) and means side.
へんじょう
henjou
うわべ
outward appearance
じょうへん
upper side (go, chess, othello board)
うわべをかざる
to put on airs
へん
circumstances
あたり
around
へんち
remote place
へんきょう
remote region
あたりいちめん
whole area
へんど
へんぼう
frontier defences
あたりいったい
all around
え
shore (of the sea)