The word "redound" resonates in my ears from repeatedly hearing my father use it in his morning prayers. As a young lad, I didn't really understand what it meant, or how my father knew it, given his 8th grade education. I now realize it was used once in the original King James Version Bible, 2 Corinthians 4:15, "For all things are for your sakes, that the abundant grace might through the thanksgiving of many redound to the glory of God."
Yes, and look at this:
ETYMOLOGY:
From Old French redonder (to overflow), from Latin redundare (to overflow), from red-/re- (back) + undare (to surge). Ultimately from the Indo-European root wed- (water, wet), which also gave us water, winter, hydrant, redundant, otter, and vodka. Earliest documented use: before 1382.
Is that not amazing?!
What I'd like to know is how we got rebound and redound; two such similar words with such similar meanings.
Or pure chance. The Latin roots for redound and rebound, redundare and (re)bombitire respectively, are too significantly different to suggest that there is any relation between the two words. I believe it was Isaac Asimov who said, in regard to something else, "It would be surprising if such coincidences never did occur."
and yet there is a connection between hydrant and otter..
Not to mention whore and charity.