I. adverb Etymology: Late Latin, literally, from a thing done afterward Date: 1621 after the fact ; retroactively, II. adjective Date: 1787 done, made, or formulated after the fact ; retroactive
EX POST FACTO
Meaning of EX POST FACTO in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012