Tregr

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

tregr

a. unwilling, reluctant (Hrafn var inn tregasti at bregða flokkinum); tardy, slow (t. til sætta); neut., tregt = tregliga; mun honum þat tregt veita, it will go hard with him.

Possible runic inscription in Younger Futhark:ᛏᚱᛁᚴᚱ

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