Leeds, May 31. 1851.
P.S. I have been favoured, through the publisher of "NOTES AND QUERIES,"
with an obliging note from S.S.S. (2), communicating some authorities,
of which the most germane to this subject are--
1. From _Archaeologia Britannica_ (Edward Lhuyd. Oxford, 1707): "Armoric,
_Men_, a stone; _menez_, a mountain."
2. From Walter's _Welsh Dictionary_: "Welsh, _Maen_, a stone; _maen
terfyn_, a boundary stone; _maen mawr_, a large stone."