Lyric discussion by glamorous*sunrise 

Cover art for Jet lyrics by Paul McCartney

isn't he saying "ah mater"? as in the british variation of mother? that's what it sounds like and it would make more sense.

@glamorous*sunrise mater is also 'mother' in ancient greek ;) maybe the most ancient type, "μάτερ" (also 'μήτερ', 'μήτηρ' and 'μητέρα' in modern greek)