post-haste

(formal)

as quickly as possible A letter was dispatched post-haste to their offices.

Name	Pronounced	Usage
Niusha	-	Persian
Tanya
Niles	NIELZ, NIE-əlz	English
Fabia	FAH-byah (Italian)	Italian, Ancient Roman
Ascelin	-	Ancient Germanic
Autumn	AW-təm	English