御古[ofuru] used article (esp. clothes)
手古摺る[tekozuru] to have much trouble
土耳古[toruko] Turkey
下稽古[shitageiko] rehearsal
懐古[kaiko] recalling the old days

擬古[giko] imitation of classical styles
擬古文[gikobun] classical style
稽古[keiko] practice
遠古登点[wokototen] marks to aid in reading Chinese classics
古え[inishie] antiquity

遺址[ishi] (historic) ruins
旧址[kyuushi] historic ruins
故址[koshi] historic ruins

城址[jouseki] castle site
古窯址[koyoushi] ruins of old kilns