一元[ichigen] unitary
一元化[ichigenka] unification
一元的[ichigenteki] monistic
一元論[ichigenron] monism
一次元[ichijigen] one dimensional

一新紀元[isshinkigen] new era
隠元[ingen] beans
隠元豆[ingenmame] common bean (Phaseolus vulgaris)
家元[iemoto] head of a school (of music, dance)
火の元[hinomoto] origin of fire

糺弾[kyuudan] blame
糺明[kyuumei] searching examination
糺問[kyuumon] inquiry

聞き糺す[kikitadasu] to ascertain
糺す[tadasu] to ascertain
元を糺す[motowotadasu] to go to the bottom of an affair