Where does “undertide” come from?

undertide (English) comes from English tide, from Middle English tyde, from Old English tīd, from Proto-Germanic tīdiz, from Proto-Indo-European déh₂itis, from Proto-Indo-European deh₂y-, from Proto-Indo-European deh₂- — to share, divide.

undertide (English): Synonym of undern: originally terce and the...

Definitions

  1. Synonym of undern: originally terce and the...

Ancestry of “undertide”, step by step

undertide traces back through 3 separate lines of ancestry.

via English tide

StepLanguageWordMeaning
1EnglishtideThe periodic change of the sea level,...
2Middle EnglishtydeA time (period), season
3Old Englishtīdtime, period, season; period, season, time;...
4Proto-Germanictīdiztime; period, interval
5Proto-Indo-Europeandéh₂itisinterval, period of time
6Proto-Indo-Europeandeh₂y-to share, divide
7Proto-Indo-Europeandeh₂-to share, divide

via English under

StepLanguageWordMeaning
1EnglishunderIn or at a lower level than; As a subject of;...
2Middle Englishunderunder
3Old Englishunderunder, beneath
4Proto-Germanicunderamong, between; under, beneath; under
5Proto-Indo-Europeanh₁entérbetween
6Proto-Indo-Europeanh₁enin; in, inside

via Old English underntid

StepLanguageWordMeaning
1Old Englishunderntidterce; the third hour after sunrise
2Old Englishundernterce, the third hour of the day; midday, the...
3Proto-Germanicundurnizan intermediate or intervening period; mean time;...
4Proto-Indo-Europeanh₁n̥ter—
Every word from Proto-Indo-European deh₂- →Every word from Proto-Indo-European deh₂y- →Every word from Proto-Indo-European déh₂itis →