云う[yuu] to say
云云[unnun] and so on
幾千と云う人[ikusentoiuhito] thousands of people

云為[uni] sayings and doings
云爾[unji] such as

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