trettende
Trettende is the ordinal numeral that denotes the position of thirteen in Norwegian and Danish. In both languages the form is used to indicate the thirteenth item in a sequence, the thirteenth day of a month, or the thirteenth position in ranking. It commonly appears in calendars, schedules, and written enumerations, and may be used when referring to floors or places, such as the thirteenth floor or the thirteenth place in a contest.
Origin and spelling: Trettende derives from the cardinal tretten, meaning thirteen, with the ordinal suffix -ende
Usage notes: In contemporary Norwegian and Danish, dates are often written with numerals (13. marts) rather than
See also: Ordinal numbers; Norwegian language; Danish language; date and time notation; floor numbering conventions.