Origin of OE pres. ind. 1st person ending

From: dariusz_piwowarczyk
Message: 41656
Date: 2005-10-29

I would like to ask what is the present opinion as to the origin of
the Old English 1st person present indicative ending in West Saxon,
i.e. the -e ending. Northern Old English dialects have -u which is a
continuation of the PIE long -o. So, is the West Saxon form from the
optative?

Looking forward for any suggestions.

Dariusz