(1) Is there anything close to scientifically-meaningful to say about whether the prefix "di-" is more Latin than the prefix "bi-", when indicating two-ness?
(2) Are there published scholarly references on precisely this question, comparing the two prefixes?
(3) Are there notable Latin words which simultaneously contain "bi" and "di"?
- In a vague sense that I have no time or experience enough to substantiate, this seems to be the case, "di-" seeming significantly more Latin-ish than "bi-" which seems more Greek-ish.
EDIT: like kindly pointed out by the responders, here this attribution of bi to Greek and di to Latin was an accidental mix-up. It is the other way round: bi is Latin, di is Greek.
Of course, the difference is not clear-cut, there is organic growth and randomness involved, and e.g. in Greek both "bi-" and "di-" appear in composites.
Both "bi-" and "di-" appear in countless scientific terms.