This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

ad. in the same way, each to the other; reciprocally

ad. in a shared manner; equally; affecting all parties the same way

ad. In a mutual manner.

In a mutual manner; reciprocally; in a manner of giving and receiving.

Equally or alike by two or more; conjointly; in common.

ad. in a mutual or shared manner

"In calling for talks between Israel and the Palestinians, Obama said the United States' "commitment to Israel's security is unshakable" and backed Palestinian demands for a new state based on borders that existed before the 1967 Six-Day War, although with what he called "mutually agreed swaps" of land."