Where does “Tweede Dwarsdiep” come from?

Tweede Dwarsdiep (Dutch) comes from Dutch diep, from Middle Dutch diep, from Old Dutch diep, from Proto-West Germanic deup, from Proto-Albanian deupa, from Proto-Indo-European dʰewp-, from Proto-Indo-European dʰewbʰ-, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

Ancestry of “Tweede Dwarsdiep”, step by step

Tweede Dwarsdiep traces back through 3 separate lines of ancestry.

via Dutch diep

StepLanguageWordMeaning
1Dutchdiepdeep, down low; profound
2Middle Dutchdiep—
3Old Dutchdiepdeep
4Proto-West Germanicdeupdeep
5Proto-Albaniandeupacradle, deposit
6Proto-Indo-Europeandʰewp-Alternative form of *dʰewbʰ-; deep
7Proto-Indo-Europeandʰewbʰ-deep
8Proto-Indo-Europeandʰewh₂-smoke; mist, haze

via Dutch dwars

StepLanguageWordMeaning
1Dutchdwarsin a crosswise direction, transverse, at right...
2Middle Dutchdwers—
3Old Saxonthwerhcontrary, against; bent, crooked
4Proto-Germanic*þwerh—
5Proto-Germanicþwerhazcross, adverse
6Proto-Germanicþerh-—
7Proto-Indo-Europeanterkʷ-to turn, spin

via Dutch tweede

StepLanguageWordMeaning
1Dutchtweedesecond, number two
2Middle Dutchtweede—
3Middle Dutchtweetwo
4Old Dutchtwē—
5Proto-Germanictwaitwo
6Proto-Indo-Europeandwóh₁two
Every word from Proto-Indo-European dʰewh₂- →Every word from Proto-Indo-European dʰewbʰ- →Every word from Proto-Indo-European dʰewp- →