す可き[subeki] should do (abbr. of suru+beki)
可き[beki] should (suf. to verbs)
もし可能ならば[moshikanounaraba] if possible
可からず[bekarazu] must not
可愛がる[kawaigaru] to love

可愛らしい[kawairashii] lovely
可圧性[kaatsusei] compressibility
可換群[kakangun] Abelian group
可逆[kagyaku] reversible

許りに[bakarini] (simply) because
允許[inkyo] permission
運転免許[untenmenkyo] driver's license
奥許し[okuyurushi] secret
仮免許[karimenkyo] temporary license

官許[kankyo] official licence
気を許す[kiwoyurusu] to let one's guard down
許し[yurushi] pardon
許す[yurusu] to permit

暗証[anshou] code
暗証化[anshouka] encryption
暗証番号[anshoubangou] personal identification number
証し[shirushi] mark
印鑑証明[inkanshoumei] certification of official registration of a seal

引証[inshou] quotation
仮受取証[kariuketorishou] temporary receipt
会員証[kaiinshou] membership certificate
外国人登録証明書[gaikokujintourokushoumeisho] certificate of alien registration
確証[kakushou] positive proof