奥さん[okusan] wife
奥さん孝行[okusankoukou] devoted to one's wife
奥の院[okunoin] inner sanctuary
奥の間[okunoma] inner room
奥の手[okunote] left hand

奥まって[okumatte] secluded
奥まる[okumaru] to lie deep in
奥意[okui] true intention
奥印[okuin] official seal

陰極[inkyoku] cathode
陰極線[inkyokusen] cathode rays
陰極線管[inkyokusenkan] cathode-ray tube
危極[kikyoku] crisis
窮極[kyuukyoku] ultimate

究極目的[kyuukyokumokuteki] extreme purpose
極く[goku] quite
極み[kiwami] height
極めて[kiwamete] exceedingly
極悪[gokuaku] heinous

余蘊[youn] inexhaustible supply
蘊蓄[unchiku] great erudition
蘊奥[unnou] inner mysteries (of a field of study)
受蘊[juun] perception

蘊蓄を傾ける[unchikuwokatamukeru] to draw upon one's profound knowledge
蘊奥を究める[unnouwokiwameru] to master the secrets of
海蘊[mozuku] mozuku (Cladosiphon okamuranus and Sphaerotrichia divaricata, types of edible seaweed)
五蘊[goun] the five skandhas (the five aggregates: matter, sensation, perception, mental formations and consciousness)