OK, got it. The “v” (labiodental fricative) shifted easily to a “b”
(bilabial plosive–”Jacob”) and thence to an “m” (bilabial nasal). Should
have thought of that. The “s” came in via Latin, “Jacobus/Jacmus.” Thanks
to all.
OK, got it. The “v” (labiodental fricative) shifted easily to a “b”
(bilabial plosive–”Jacob”) and thence to an “m” (bilabial nasal). Should
have thought of that. The “s” came in via Latin, “Jacobus/Jacmus.” Thanks
to all.