Naturally the detail in this thread may meander from Ethnographic to European and broadening out the reader will perhaps notice that concepts thought basic are in fact not so simple as first envisaged
Pas D'ane is one such peculiar addition.
www.dictionary.com/browse/pas-d-ane says regarding swords Quote" it comprises the two rings under the crossguard in which a finger may be inserted for safety and for added control of the blade. Literally it means; Asses Step."Unquote.
There may also be a single ring. See Below.
I cornered an interesting web page here
https://oldswords.com/articles/Small...ibles-v1i1.pdf with examples and a good sketch with named parts.
Pick up on these Pas D'ane at websites like
https://www.pinterest.com/pin/342766221609821775/