Þref

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

þref

n. a kind of upper floor; fig., kemr nú á ~ um draumana, the (dismal) dreams come again.

Possible runic inscription in Younger Futhark:ᚦᚱᛁᚠ

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