後ろ楯[ushirodate] backing
小楯[kodate] small shield
楯籠る[tatekomoru] to barricade oneself in
楯つく[tatetsuku] to oppose

醜の御楯[shikonomitate] the humble shield of our Sovereign Lord
楯籠り[tatekomori] shutting oneself in (one's room, etc.)
楯鱗[junrin] placoid scale
楯状火山[tatejoukazan] shield volcano

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