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

研鑚[kensan] diligent study
鑚り火[kiribi] striking sparks with flint and steel or by rubbing sticks together (usu. to start a fire)

鑚孔機[sankouki] boring machine
鑚る[kiru] to start a fire (with wood-wood friction or by striking metal against stone)