What is the meaning of Courtesy?

Polite behavior.

A polite gesture or remark, especially as opposed to an obligation or standard practice.

Consent or agreement in spite of fact; indulgence.

Willingness or generosity in providing something needed.

A curtsey.

The life interest that the surviving husband has in the real or heritable estate of his wife.

Alternative form of curtsey

Given or done as a polite gesture.

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Source: wiktionary.org