in·su·lary I. \ˈ ̷ ̷ ̷ ̷ˌlerē\noun (-es) Etymology: probably modification (influenced by English -ary) of French insulaire, from insulaire, adjective, insular, from Late Latin insularis archaic: islander II. adjective Etymology: probably modification (influenced by English -ary) of Late Latin insularis archaic: insular