I just ran into seanmháthair
, glossed as grandmother, in a novel and it started me pondering indo-european cognate
words. The second element is clearly mother/mater/madre/etc., (possibly the 'first' word in indo-european - the literal mother word of the mother tongue). Does the first element (sean~) mean something like old/venerated/senior, which would make it cognate with other IE words like señor/senile/senator, etc? My examples all came through Latin, and I can't think of a good non-latinate germanic example. Do the gaelic languages have a branch of this limb? Is this it?