post-haste
adverb/ˌpəʊst ˈheɪst/
/ˌpəʊst ˈheɪst/
(literary)- as quickly as you can
- to depart post-haste
Word Originmid 16th cent.: from the direction “haste, post, haste”, formerly given on letters.
Check pronunciation:
post-haste