一匹[ippiki] one animal (small)
数匹[suuhiki] several animals
馬匹[bahitsu] horses
匹敵[hitteki] comparing with
匹夫[hippu] (humble) man

匹夫の勇[hippunoyuu] rash courage
匹夫匹婦[hippuhippu] coarse men and women
匹婦[hippu] coarse woman
匹儔[hicchuu] equal

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