湮 (w)

(yān) to inundate; to bury; to cover up; obscured; submerged

湮 (w)

(yīn) variant of 洇[yin1]

湮没 (w)

(yānmò) to bury; to submerge; to pass into oblivion; to obliterate; to annihilate (physics)

湮没无闻 (w)

(yānmòwúwén) to pass into oblivion

湮灭 (w)

(yīnmiè) to destroy; to disappear; annihilation