急度[kitto] surely
オリエント急行[orientokyuukou] Orient express
応急[oukyuu] emergency
応急攻撃[oukyuukougeki] hasty attack
応急渡河[oukyuutoka] hasty crossing

火急[kakyuu] emergency
緩急[kankyuu] pace
危急[kikyuu] emergency
危急存亡[kikyuusonbou] life-and-death matter

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

急遽[kyuukyo] hurriedly
遽しい[awatadashii] busy

遽然[kyozen] sudden
惶遽[koukyo] being afraid and panicked