ex tunc

Borrowed from Late Latin ex tunc (“from the beginning”, literally “from then”).

• IPA^(key): /ˌɛks ˈtʌŋk/

ex tunc

1. (law) from the beginning, from the outset. Used to describe certain legal effects that can affect situations prior to this point in time and therefore can affect past actions.

• ex nunc

Borrowed from Late Latin ex tunc.

• IPA^(key): [ʔɛksˈtʊŋk]

ex tunc

1. (law) ex tunc

   Antonym: ex nunc

• extunc

ex (“from, out of”) +‎ tunc (“then, in the past”); the use of ex with adverbs of time is a Late Latin development.

• (Classical) IPA^(key): /eks tunk/, [ɛks̠ t̪ʊŋk]
• (modern Italianate Ecclesiastical) IPA^(key): /eks tunk/, [ɛks t̪uŋk]

ex tunc (not comparable) (Late Latin)

1. from then on, from that time
2. from the beginning, from of old
   • 405 CE, Jerome, Vulgate Isaiah.48.3:

     Priora ex tunc adnuntiavi, et ex ore meo exierunt, et audita feci ea.

     I have declared the former things from of old, and they have gone out from my mouth, and I have made them heard.

• ex in Georges, Karl Ernst, Georges, Heinrich (1913–1918) Ausführliches lateinisch-deutsches Handwörterbuch, 8th edition, volume 1, Hahnsche Buchhandlung
• Souter, Alexander (1949) “extunc”, in A Glossary of Later Latin to 600 A.D.‎, 1st edition, Oxford: Oxford University Press, published 1957, page 142