委任[inin] charge
委任状[ininjou] commission
一任[ichinin] entrusting
引責辞任[insekijinin] taking responsibility upon oneself (and resigning)
解任[kainin] dismissal

帰任[kinin] return to one's post
共同責任[kyoudousekinin] joint responsibility
兼任[kennin] concurrent post
後任[kounin] successor
口任せ[kuchimakase] random talk

以降[ikou] on and after
引き降ろす[hikiorosu] to haul down
雨降って地固まる[amefuttejikatamaru] adversity strengthens the foundations
横降り[yokoburi] driving rain
降す[kudasu] to make (a decision)

降立つ[oritatsu] to go down and stand
降る[kudaru] to descend
降ろし[oroshi] dropping
下降[kakou] downward
下降線[kakousen] downward curve