in·ter·com·mon \ˌintə(r)ˈkämən\intransitive verb (-ed/-ing/-s) Etymology: Middle English intercomounen, entercomenen, from Anglo-French entrecomuner, from Old French entre- inter- + comuner to put in common, share — more at commune 1.obsolete: to have dealings or association 2.obsolete: to share with others : participate mutually 3.: to enjoy a right of pasture together