引去る[hikisaru] to retreat
汚染除去[osenjokyo] decontamination
去なす[inasu] to parry
過ぎ去った可能性[sugisattakanousei] might-have-been
過去る[sugisaru] to pass

過去[kako] the past
過去形[kakokei] past tense
去る[saru] to leave
去月[kyogetsu] last month
去就[kyoshuu] committing one's self

軍備撤廃[gunbiteppai] complete disarmament
市場撤退[shijoutettai] pulling out of a market
撤頭徹尾[tettoutetsubi] thoroughly
撤回[tekkai] withdrawal
撤去[tekkyo] withdrawal

撤収[tesshuu] removal (e.g. of a building)
撤退[tettai] evacuation
撤廃[teppai] annulment
撤兵[teppei] withdrawal of troops
部隊撤退[butaitettai] troop withdrawal