I have just seen this usage:
… you have been summonsed …
My immediate reaction was one of (let’s say) surprise; I would have thought the correct form was:
… you have been summoned …
Is there, in fact, a verb “to summons”, and, if so, where did it come from?
Summons means, in the OED’s definition, ‘to cite before a court or a judge or magistrate; to take out a summons against’ and is first recorded in that sense in 1780. It has a similar etymology to summon and was once used as an alternative to it.