to substitute for; to take the place of; to replace; for; on behalf of
Depicts two people (夫) standing side-by-side, one person higher and one person lower. Represents one person taking the place of another. The 曰 component was added at the bottom to distinguish from 並, which also depicts two people standing side-by-side.
《說文》：“，廢，一偏下也。从竝，白聲。暜，或从曰。，或从兟，从曰。”