Meaning of the word backdate in English

What does backdate mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

backdate

US /ˈbæk.deɪt/
UK /ˌbækˈdeɪt/

Verb

to make something effective from an earlier date

Example:
The pay raise will be backdated to January 1st.
Can you backdate this invoice to last month?