promptitude

noun

Etymology: From Middle English promptitude, from Late Latin prōmptitūdō, from Classical Latin prōmptus. By surface analysis, prompt + -itude.

1. The quality of being prompt; alacrity.

   “The pleasure evinced by Sir Charles was only less than that of his lady, and, as he appeared every way worthy of her, and sensible of her value, Mr. Glentworth bade her adieu with the more cheerfulness, and, on their return to the hotel, Isabella had ceased to lament the transaction, and all agreed to praise that promptitude of action which had enabled him to perform his wishes so happily.”

   “"I've been directed here to find Miss Susan Pike," the man outside explained, between fresh coughings. ¶ "Well, then, mog your boots out of this as quick as ever you can!" my Aunt replied, with great promptitude. "You won't find her here!"”