Where does “op den duur” come from?

op den duur (Dutch) comes from Dutch duur, from Dutch duren, from Middle Dutch duren, from Old French durer, from Latin dūrō, from Latin dūrus, from Proto-Italic dūros, from Proto-Indo-European duh₂-ró-s — far; long.

Ancestry of “op den duur”, step by step

op den duur traces back through 3 separate lines of ancestry.

via Dutch duur

StepLanguageWordMeaning
1Dutchduurexpensive; duration
2Dutchdurento last, to take
3Middle Dutchdurento continue, to persist; to keep; to be durable
4Old Frenchdurerto last
5Latindūrōto harden, make hard
6Latindūrus—
7Proto-Italicdūros—
8Proto-Indo-Europeanduh₂-ró-slong, far
9Proto-Indo-Europeandweh₂-far; long

via Dutch op

StepLanguageWordMeaning
1Dutchopup; onto, up onto; Used in separative verbs...
2Middle Dutchopon, on top of; at, in the direction of; at, by
3Old Dutchupup, upwards
4Proto-Germanicuppup, upwards
5Proto-Germanicubunder
6Proto-Indo-Europeanupóunder, below
7Proto-Indo-Europeanh₃ewp-—

via Dutch den

StepLanguageWordMeaning
1Dutchdenpine, pine tree; Dative singular masculine form...
2Middle Dutchdeninflection of die: ## masculine accusative/dative...
Every word from Proto-Indo-European dweh₂- →