posthaste

[pohst-heyst]

adverb

1. with the greatest possible speed or promptness.

   to come to a friend's aid posthaste.

noun

1. Archaic.,  great haste.

posthaste

/ ˈpəʊstˈheɪst /

adverb

1. with great haste; as fast as possible

noun

1. archaic,  great haste

posthaste

1. Immediately, with great speed: “Get the flood warning to the media posthaste.”

Word History and Origins

Origin of posthaste¹

First recorded in 1530–40; post ³ + haste

Example Sentences

Mrs. Clarke, I am sorry to interrupt your chess game, but could you summon Jasper and have him at the ready to run a letter to the post, posthaste?”

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“It would. Simon, I must find the admiral before he leaves. There is something I need to ask him. Will you escort me to the POEHO, posthaste? I have no doubt that that is where we will find him, for that is where all his business papers are, and I know he will not leave Ashton Place without them.”

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“The government must apparently pay the $2 billion posthaste — not because the law requires it, but simply because a district judge so ordered,” Alito wrote.

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Turns out it was an instrument of a different sort, and the resident turned in the weapon at the sheriff’s South Los Angeles station posthaste.

Read more on Los Angeles Times

"The government must apparently pay the $2 billion posthaste — not because the law requires it, but simply because a district judge so ordered," Alito wrote.

Read more on Salon