Proto-Indo-European root meaning "a day" (as a unit of time). The initial d- in Germanic is of obscure origin.
It forms all or part of: adays; Bundestag; daily; daisy; dawn; day; holiday; Reichstag; today.
It is the hypothetical source of/evidence for its existence is provided by: Sanskrit dah "to burn," Lithuanian dagas "hot season," Old Prussian dagis "summer."
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