Brian
According to https://www.ordabok.is/index.asp the dative sg of leikur is leik so that would explain it. I guess, it must be what Gordon calls an i-stem noun, and so declines like staðr and bekkr (his examples), where the dative singular is the same as the accusative.
Alan
From: norse_course@yahoogroups.com <norse_course@yahoogroups.com>
Sent: Wednesday, 14 November 2018 5:46 AM
To: nielsenjava@... [norse_course] <norse_course@yahoogroups.com>
Subject: Re: [norse_course] Hrafns Saga 8B
GPH has <spáleik> rather than <spakleik>, but it seems clear
from other words in <spak-> and <spá-> that the two are
synonymous. However, I don’t understand why it isn’t dative
<spakleiki> to agree with <nökkurum>.