Does someone know if there is a site that shows on an all languages scale other still active root words?Not for all languages, but for the major Indo-European ones there's always the online version of Pokorny's
Indogermansiches Etymologisches Wörterbuch (
link), but the interface is kind of sucky and I tend to use my offline version. Slowly, I have been collecting links to the major European online (monolingual) dictionaries and most of these contain etymological data. For Dutch, there is
Etymologisch Woordenboek van het Nederlands (
link), but you have to register. I also own
Etymologisch Woordenboek der Nederlandssche Tal. I've had less luck with the various versions of Wiktionary, e.g.,
Dutch).
Dutch
leuk is cognate with English
luke as in
lukewarm (see root *
kelə- 'warm' in A-H
link). (Interesting that tautology.)
lucubrate
