嬉嬉[kiki] gleeful
嬉しい[ureshii] happy
嬉しがる[ureshigaru] to be glad
嬉し涙[ureshinamida] happy tears
嬉笑[kishou] happy laughter

嬉しそう[ureshisou] delightful
嬉戯[kigi] frisking
嬉泣[ureshinaki] weeping for joy
嬉しがらせ[ureshigarase] flattery
嬉遊曲[kiyuukyoku] divertimento

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