Wow, much thanks to Llama Nom for digging up so much information.
I will make the due corrections on my webpages.

Interesting to discover that in the names of Turpin's
sword, "Almacia" [ON] and "Almace" [OF],
the "c" was pronounced similarly as [ts] in both Old Norse
and Old French.

This does put into question my hazarded guess that "Almace" might be
cognate with the English word "alms" which has the following
etymology:

[..OE aelmysse ON almusa OFris ielmisse OHG alamuosan MHG
almuosen .. from common OTeut *alemosna or *alemosina a. Vulg. Lat.
*alimosina , LL eleemosyna, Gk ἐλεημοσύνη "compassionateness,
mercy".]

I was vaguely aware that "ce" in Old English was pronounced "che" or
[tS-e] because I listened to a recording of the poem "Deor" in which
there occurs the line "Eormanrices" = "Ermanaric's"; Ermanaric being
of course Jörmunrekr of the Eddas and the Volsunga saga.

Ole Worm is a figure who I came across as a collector of Faroese
folktales. I think I read that he owned a natural history museum and
also published an extensive catalog of runic inscriptions around
Scandinavia, though I'm not much familiar with runestones and the
like.

Thanks again for your help,
Kiyo