Backdate definitions

Backdate

1) Effect 2) Make retroactive
Found on https://www.crosswordclues.com/clue/backdate

---

backdate

[v] - make effective from an earlier date
Found on http://www.webdictionary.co.uk/definition.php?query=backdate

---

backdate

verb make effective from an earlier date; `The increase in tax was backdated to January`
Found on https://www.encyclo.co.uk/local/20974

---