臥薪嘗胆[gashinshoutan] going through thick and thin to attain one's objective
薪水[shinsui] fuel and water
薪炭[shintan] wood and charcoal
薪拾い[takigihiroi] firewood gathering

薪割[makiwari] hatchet
薪能[takiginou] noh theater performed at night by a fire
薪小屋[makigoya] woodshed

一念発起[ichinenhokki] being resolved to (do something)
引き起す[hikiokosu] to cause
縁起[engi] omen
喚起[kanki] arousal
起きる[okiru] to get up

起上る[okiagaru] to rise
起す[okosu] to raise
起こり得る[okoriuru] to be possible to occur
起る[okoru] to occur
起つ[tatsu] to rise up