Where does “extratidal” come from?

extratidal (English) comes from English tidal, 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.

extratidal (English): higher or lower than would be caused by tidal...

Definitions

  1. higher or lower than would be caused by tidal...

Ancestry of “extratidal”, step by step

extratidal traces back through two separate lines of ancestry.

via English tidal

StepLanguageWordMeaning
1Englishtidalrelating to tides
2EnglishtideThe periodic change of the sea level,...
3Middle EnglishtydeA time (period), season
4Old Englishtīdtime, period, season; period, season, time;...
5Proto-Germanictīdiztime; period, interval
6Proto-Indo-Europeandéh₂itisinterval, period of time
7Proto-Indo-Europeandeh₂y-to share, divide
8Proto-Indo-Europeandeh₂-to share, divide

via English extra

StepLanguageWordMeaning
1EnglishextraBeyond what is due, usual, expected, or...
2EnglishextraordinaryNot ordinary; exceptional; unusual; Remarkably...
3Latinextraordināriusextraordinary
4Latinōrdinem
5Middle Low Germanorden
6Latinōrdināre
7Latinōrdōa methodical series, arrangement, or order; regular line, row, or series
8Proto-Italicored(h)-to arrange
Every word from Proto-Indo-European deh₂-Every word from Proto-Indo-European deh₂y-Every word from Proto-Indo-European déh₂itis