Nótt

As defined by A Concise Dictionary of Old Icelandic (Geir Zoëga):

nótt

(gen. nætr, pl. nætr), f. night, = nátt; at miðri ~, of miðja ~, about midnight; um nóttina, through the night, during the night; um nóttina áðr, the preceding night; í ~, tonight (eigi mun hann láta drepa Egil í ~); the last night (ek ók í ~ eptir viði); nætr ok daga, both by day and by night; nóttin helga, the holy night, Christmas night.

Possible runic inscription in Younger Futhark:ᚾᚢᛏᛏ

Also available in related dictionaries:

This headword also appears in dictionaries of other languages closely related to Old Icelandic.

• Old Norse - Cleasby & Vigfusson Dictionary
• Old Norwegian - Johan Fritzner's Dictionary