sang nge

nam kha' bzhin + - transparent as the sky [RY]

sang nge ba (state of) pure clarity/ lucidity; pristine/ immaculate/ pure; brilliance; brilliant [acc. to KOT, such words are nyams kyi skad cha and all have a sense of gsal cha rnam rtog med pa] [RB]

immaculate, stainless, pure, secret, purely, pure clarity, vividly present, clear, lucid [JV]

purely [RY]

clear, pure, unadulterated [IW]

gu yangs sang nge - utterly transparent and serene [RY]