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

垂迹[suijaku] temporary manifestation by a buddha (in order to save people)
筆迹[hisseki] handwriting
真迹[shinseki] true autograph

事迹[jiseki] evidence
本地垂迹説[honjisuijakusetsu] manifestation theory (holding that Shinto gods are manifestations of buddhas)
迹門[shakumon] first half of the Lotus Sutra, in which the Buddha appears as a spatiotemporally restricted being