As defined by the Cleasby & Vigfusson Old Norse to English dictionary:
þrettándi Old Norse word can mean:
- the thirteenth, passim.
- 2. the thirteenth and last day of Yule, or the 6th day of Jan., is in Icel. called ‘Þrettándi,’ in Engl. Twelfth Night; see Icel. Almanack.
Possible runic inscription in Younger Futhark:ᚦᚱᛁᛏᛏᛅᚾᛏᛁ
Younger Futhark runes were used from 8th to 12th centuries in Scandinavia and their overseas settlements
- Iceland, Icelander, Icelanders, Icelandic.
Also available in related dictionaries:
This headword also appears in dictionaries of other languages descending from Old Norse.