Dr. Johnson says this noun is from the verb to summon; and, if this is its origin, the singular ought to be a summon, and then summons would be a regular plural.

Announce to her That I am back, and this my summons is Say, rather, my requestas now I say.

A mere summons to a strange place like a bank might be sinister, but a polite invitation to a conference at his convenience was different.

WARNING: MENTION NOT THIS SUMMONS TO A LIVING SOUL OR AWFUL WILL BE THE CONSEQUENCES.

It is yet undecided whether the Persians admitted their matrons to their public banquets and private parties;but if we can believe the positive testimony of Herodotus, such was the case: and the summons of Vashti to the annual festival, and the admission of Haman to the queen's table, are facts which support the affirmation of that historian.

Khaki and guns, men trudging along, bearing the burdens of war, motor trucks, rushing ponderously along, carrying ammunition and food, messengers on motorcycles, sounding to all traffic that might be in the way the clamorous summons to clear the paththose were the sights we saw!

Summonses is given in Cobb's Dictionary as the plural of summons; but some authors have used the latter with a plural verb: as, "But Love's first summons seldom are obey'd."Waller's Poems, p. 8.

As if those summons were an adversarie And had some mighty crime to charge her with.