に拠る[niyoru] by means of
に拠れば[niyoreba] according to (quotation)
依拠[ikyo] dependence
拠る[yoru] to be due to
割拠[kakkyo] holding one's ground

急拠[kyuukyo] hurriedly
拠点[kyoten] position
拠点とする[kyotentosuru] to be based in (a place)
拠点に置く[kyotennioku] to be based in (a place)
群雄割拠[gunyuukakkyo] rivalry of local warlords

確かに[tashikani] surely
確かめる[tashikameru] to ascertain
確言[kakugen] assertion
確乎[kakko] firm
確執[kakushitsu] discord

確実[kakujitsu] certainty
確実性[kakujitsusei] certainty
確実度[kakujitsudo] certainty
確証[kakushou] positive proof
確信[kakushin] conviction

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