qián​yí

subtle transformation

潜移 潛移 qián​yí
subtle transformation
To change or transform naturally and imperceptibly over time
to creep
(of soil or rocks) To move slowly and continuously downhill under the force of gravity; to undergo a slow, nearly imperceptible geological movement.
to move secretly
To move or shift location in secret or behind the scenes
textual corruption
(of written characters) to change gradually or be miswritten through successive transcriptions