Þrídeila

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

þrídeila

(-da, -dr), v. to divide into three parts.

Possible runic inscription in Younger Futhark:ᚦᚱᛁᛏᛁᛁᛚᛅ

Also available in related dictionaries:

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

• Old Norwegian - Johan Fritzner's Dictionary