凝乎と[jitto] motionlessly
確乎[kakko] firm
乎己止点[okototen] marks to aid in reading Chinese classics
断乎[danko] firm
嗟乎[aa] Ah!

天爾乎波[teniwoha] postpositions
断断乎[dandanko] firm
牢乎[rouko] firm
醇乎[junko] pure
確乎不抜[kakkofubatsu] determined

ポリシーに固執[porishiinikoshitsu] adherence to a policy
意固地[ikoji] obstinate
雨降って地固まる[amefuttejikatamaru] adversity strengthens the foundations
嘘で固める[usodekatameru] to fabricate a web of lies
押し固める[oshikatameru] to press together

確固[kakko] firm
乾固[kanko] drying and hardening
乾固まる[hikatamaru] to dry and harden
干し固める[hoshikatameru] to dry until stiff
簡明強固[kanmeikyouko] plain and sturdy

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