傍系 ぼうけい Meanings Noun, の-adjective collateral family; subsidiary line; affiliate Noun coset See also: 剰余類 (じょうよるい). Kanji 傍 beside. Read as ボウ. 系 system. Read as ケイ. Words containing 傍系 傍系血族 (ぼうけいけつぞく) collateral relation by blood Jinuma: Japanese Dictionary · Word lists