[Mad Dawg]

No biggie.

co = prefix meaning ‘with’.
re = intensive prefix suggesting repetition.
d = inserted to make it easier to say. otherwise it would sound like remptor/remptrix.
emptor = buyer: Caveat emptor - let the buyer beware. preempt.
-or becomes -rix in feminines.

[Judith Anne]

I could be wrong, but I don’t think “emptor” goes in there. Could you please double check?

[count-your-change]

MD, your comment: “co = prefix meaning ‘with’”, is more than a bit misleading due to it's incompleteness.

Co does mean ‘with’ or ‘together’ but in the sense of sharing a thing as in two people producing a book being “co-authors” or more than one person in SHARED ownership being “co-owners”.

Sitting beside a driver may mean we are co-passengers but I would NOT be a co-driver and attempts to be so might well end badly.

[Iscool]

co = prefix meaning ‘with’.

World English Dictionary

co-

— prefix
1. together; joint or jointly; mutual or mutually: coproduction
2. indicating partnership or equality: cofounder ; copilot
3. to the same or a similar degree: coextend
4. (in mathematics and astronomy) of the complement of an angle: cosecant ; codeclination
[from Latin, reduced form of com- ]

From this dictionary, I'd say you really don't know, or you are trying to pull the wool over our eyes...

Co-redeemer in English does NOT mean with...It means joint or jointly, equality...

So now we really do know what you mean when you say co-redeemer...And Mary ain't it...