Where does “lifeday” come from?

lifeday (English) comes from English life, from Middle English lyf, from Old English līf, from Proto-West Germanic līb, from Proto-Germanic lībą, from Proto-Germanic lībaną, from Proto-Indo-European leyp-, from Proto-Indo-European lēy- — to leave, let; to want, desire; to let; leave...

lifeday (English): A day of someone's life; chiefly in plural: a...

Definitions

  1. A day of someone's life; chiefly in plural: a...

Ancestry of “lifeday”, step by step

lifeday traces back through two separate lines of ancestry.

via English life

StepLanguageWordMeaning
1EnglishlifeThe state of organisms preceding their death,...
2Middle Englishlyflife
3Old Englishlīflife, existence; life-time
4Proto-West Germaniclībbody; life
5Proto-Germaniclībąbody; life
6Proto-Germaniclībanąto remain, to be left
7Proto-Indo-Europeanleyp-to stick; fat or sticky substance
8Proto-Indo-Europeanlēy-to leave, let; to want, desire; to let; leave...

via English day

StepLanguageWordMeaning
1EnglishdayAny period of 24 hours; A period from midnight to...
2Middle Englishdayday; daylight, sunlight; epoch, age, period
3Old Englishdæġday, daytime
4Proto-West Germanicdagday
5Proto-Germanicdagazday; name of the D-rune
6Proto-Indo-Europeandʰegʷʰ-to burn; warm, hot
Every word from Proto-Indo-European lēy-
lifeday — Etymology, Origin & Word History | Etymology Explorer