dopparedan

From doppa (“dip”) +‎ -are (“er”) +‎ dan (“the day (colloquial)”), "the dipper day." See the etymology for dopparedagen.

dopparedan c

1. alternative form of dopparedagen (“Christmas Eve”)

   dan före dan före dopparedan

   the day before the day before Christmas Eve

• “dopparedan”, in Svensk ordbok [Dictionary of Swedish] (in Swedish)
• “dopparedan”, in Svenska Akademiens ordlista [Wordlist of the Swedish Academy] (in Swedish)