0
votes
2answers
157 views

People eighty years and up

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?
6
votes
3answers
2k views

Why A is pronounced differently in “opacity” and “opaque”

When I look at pronunciation guides for opacity and opaque I see the following: opaque: oh-peyk (a hard A) opacity: oh-pas-i-tee (a soft A) Since their root seems to be the Latin opācus, ...
8
votes
2answers
2k views

Plural of “abacus”

A colleague and I were having a discussion as to the proper plural form of abacus. I believe the plural would be abacuses and he feels that the proper form would be abaci. I believe that abacuses is ...