懐旧[kaikyuu] recalling the old days
旧ソ連[kyuusoren] former Soviet Union
旧悪[kyuuaku] past misdeeds
旧衣[kyuui] worn-out clothes
旧詠[kyuuei] ancient poems

旧怨[kyuuen] old grudge
旧縁[kyuuen] old relationship
旧恩[kyuuon] old favors
旧仮名遣[kyuukanazukai] former (i.e. before the post-WWII reforms) kana usage in writing the readings of kanji

旧趾[kyuushi] ruins
古趾[koshi] historic ruins
趾骨[shikotsu] phalanx (phalange) of the foot
母趾外反症[boshigaihanshou] bunion
趾行性[shikousei] digitigrade (walking on the toes)

外反拇趾[gaihanboshi] hallux valgus
古窯趾[koyoushi] ruins of old kilns
母趾[boshi] big toe
足趾[sokushi] footprints
足趾節[sokushisetsu] pediphalanx