Is there a word for people in the 80+ age group? I know octogenarian means 80-to-89-year-olds. Is there a word for people in their 80s, 90s, 100s, etc., inclusive? Supraoctogenarian?
As best as I can tell, a good example is sociopath: sociopath — from socio- on model of psychopath socio- — combining form of [Latin] socius pathos — from [Greek] ...