the day before yesterday
adverb/ˌɐ̃t‿õˈtɐ̃j̃/medium
an·te·on·tem
Definition
On the day immediately before yesterday; two days ago.
The concert was the day before yesterday, there are no tickets left.
He returned from his trip the day before yesterday morning.
Common collocations
the day before yesterday morningsince the day before yesterday
Etymology
Locução adverbial formada por 'ante-' (do latim 'ante', antes) + 'ontem' (do latim 'ad noctem', na noite).