Moin is a Frisian and Low German greeting from East Frisia, Southern Schleswig (inclusive North Frisia and Flensburg), Bremen, Mecklenburg-Vorpommern, the eastern Netherlands and Southern Jutland in Denmark, meaning "hello".
Usage
Its use spread during the first half of the 20th century over the whole of northern
Schleswig-Holstein; it is also used in the Danish dialect
Southern Jutish. Due to the German comic character
Werner (who always greets with
moin), since the 1980s it is used more and more by younger people in southern parts of the German language area as well. In particular, the word has gained some popularity in
internet use.
People in more southern parts of Germany often mistakenly assume that Moin is a short form of Morgen (meaning "morning") and should be used like "good morning". Saying "moin" in parts of Germany other than the north will indicate you to be a northerner. Non-locals often fall into the trap of using "moin moin" instead of "moin", which is more commonly used amongst the locals.
Derivation
The word derives from the Frisian word
mooi, meaning "beautiful" or "good". In the also popular form
moin moin, the second
moin (also
morn) means "day" in Frisian. Similar forms in Low saxon are
mooien Dag,
mooien Abend,
mooien Mor(g)en.
Moin is semantically equivalent to the Low Saxon (
Plattdüütsch) greeting
Tag and replaced it in many areas. Therefore,
moin can be used 24 hours a day. The duplication
moin moin is used as emphasis and for a more polite form as well. In Southern Jutish,
mojn is used for hello and good bye, but
mojn mojn is solely used for good bye. Moin moin literally means "(Have a) good day".
Moin is also a likely root for the Finnish informal greetings moi ("hello" or "hi") and moi moi ("goodbye") which are typical of Southwestern Finnish.