Where does “birthaversary” come from?

birthaversary (English) comes from English anniversary, from Middle English anniversary, from Medieval Latin anniversaria, from Latin anniversārius, from Latin versus, from Latin vertō, from Proto-Italic wertō, from Proto-Indo-European wert- — to burn; to cover, heed, notice; squirrel.

birthaversary (English): The combined celebration of one's birthday and one's anniversary, especially when the two individual events are near each other in date

Definitions

  1. The combined celebration of one's birthday and one's anniversary, especially when the two individual events are near each other in date

Ancestry of “birthaversary”, step by step

birthaversary traces back through two separate lines of ancestry.

via English anniversary

StepLanguageWordMeaning
1EnglishanniversaryA day that is an exact number of years since a...
2Middle Englishanniversary
3Medieval Latinanniversarianominative feminine singular of anniversārius;...
4Latinanniversāriusannual, yearly
5Latinversusturned, changed, having been turned; towards,...
6Latinvertōto turn, turn oneself, direct one's way, to turn about, turn around, revolve
7Proto-Italicwertōto turn
8Proto-Indo-Europeanwert-to turn, to rotate
9Proto-Indo-Europeanwer-to burn; to cover, heed, notice; squirrel

via English birthday

StepLanguageWordMeaning
1EnglishbirthdayThe anniversary of the day on which someone is...
2Middle Englishbirthdai
3Old Englishġebyrddæġbirthday
Every word from Proto-Indo-European wer-
birthaversary — Etymology, Origin & Word History | Etymology Explorer