in term banns of marriage (late 12c., spelling with double -n- attested from 1540s), from Old English bannan "to summon, command, proclaim" (see ban (v.)). Also most likely partially from Old French ban "announcement, proclamation, banns, agreement," from Frankish *ban or some other Germanic cognate associated with the Old English term.
- right of ban
- mesmerisation [Br.]
In Ulster the Bann navigation connects Coleraine, by means of Lough Neagh, with the Lagan navigation which serves Belfast; and the Ulster canal connects Lough Neagh with Lough Erne.