Definition from Wiktionary, the free dictionary
Back-formation from liaison, itself from French liaison (“binding”), from Latin ligatio (stem ligation-) (English ligation), derived from ligō (“I bind”), from Proto-Indo-European *leygʰ- (“to bind”).
- To establish a liaison.
- To act between parties with a view to reconciling differences.
- To cooperate, consult and discuss in order to come to a common solution.