セーム革[seemugawa] chamois leather
沿革[enkaku] history
革まる[aratamaru] to be renewed
革める[aratameru] to change
改革[kaikaku] reform

改革案[kaikakuan] reform proposal
改革過程[kaikakukatei] reform process
革靴[kawagutsu] leather shoes
革新[kakushin] reform
革新系[kakushinkei] liberal

皮鞣し[kawanameshi] tanning
クロム鞣[kuromunameshi] tanning using chromium compounds (i.e. potassium dichromate, etc.)
鞣す[namesu] to tan (leather, hide, etc.)

鞣革[nameshigawa] leather
藍鞣[ainameshi] indigo-dyed leather